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  • 轮机英语期末答案

    )Armature windings of the electric motor for NO.2 deck cargo winch found low insulation. Windings re-winded,painted and baked dry. (2) NO.1 main air compressor failed to build up pressure.The machine disassembled, cleaned and inspected. The discharge valve plate found broken. The valve palte renewed and running trials tested after being reassembled. 

    标签: 答案

    上传时间: 2020-07-14

    上传用户:

  • UL60730-1AutomaticElectrialcontrolsforHouseholdand

    UL Standard for Safety for Automatic Electrical Controls for Household and Similar Use, Part 1: GeneralRequirements, UL 60730-1Fourth Edition, Dated October 19, 2009Summary of TopicsThis new edition of UL 60730–1 is being issued to:1) Adopt IEC’s Amendments No. 1 and No. 2 of IEC 60730-1.2) Adopt UL’s proposed changes to the national differences.

    标签: ul60730

    上传时间: 2021-10-21

    上传用户:ttalli

  • IEC 62368_2014--安規

    THIS PUBLICATION IS COPYRIGHT PROTECTEDCopyright © 2014 IEC, Geneva, SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any formor by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fromeither IEC or IEC's member National Committee in the country of the requester. If you have any questions about IECcopyright or have an enquiry about obtaining additional rights to this publication, please contact the address below oryour local IEC member National Committee for further information.Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduiteni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopieet les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez desquestions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisezles coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

    标签: iec标准

    上传时间: 2021-10-21

    上传用户:kent

  • GJB181B-2012目录

     的中英文版本切换 第 3 讲 系统常用参数的推荐设置 第 4 讲 原理图系统参数的设置 第 5 讲 PCB 系统参数的设置 第 6 讲 系统参数的保存与调用 第 7 讲 Altium 导入及导出插件的安装 第 8 讲 电子设计流程概述 第 9 讲 工程文档介绍及工程的创建 第 10 讲 添加或移除已存在文件到工程第二部分 元件库(原理图库)创建第 11 讲 元件符号的概述 第 12 讲 单部件元件符号的绘制(实例:电容、ADC08200) 第 13 讲 子件元件符号的绘制(实例:放大器创建) 第 14 讲 已存在原理图自动生成元件库 第 15 讲 元件库的拷贝 第 16 讲 元件的检查与报告 第三部分 原理图的绘制 第 17 讲 原理图页的大小设置 第 18 讲 原理图格点的设置 第 19 讲 原理模板的应用 第 20 讲 放置元件(器件) 第 21 讲 元件属性的编辑 第 22 讲 元件的选择、移动、旋转及镜像 第 23 讲 元件的复制、剪切及粘贴 第 24 讲 元件的排列与对齐 第 25 讲 绘制导线及导线的属性设置 第 26 讲 放置网络标号链接 第 27 讲 页连接符的说明及使用 第 28 讲 总线的放置 第 29 讲 放置差分标示 第 30 讲 放置 NO ERC 检测点第 31 讲 非电气对象的放置(辅助线、文字、注释) 第 32 讲 元件的重新编号排序 第 33 讲 原理图元件的跳转与查找 第 34 讲 层次原理图的设计 第 35 讲 原理图的编译与检查 第 36 讲 BOM 表的导出 第 37 讲 原理图的 PDF 打印输出 第 38 讲 原理图常用设计快捷命令汇总 第 39 讲 实例绘制原理图--AT89C51 (130 讲素材) 第四部分 PCB 库的设计 第 40 讲 PCB 封装的组成元素 第 41 讲 2D 标准封装创建 第 42 讲 异形焊盘封装创建 第 43 讲 PCB 文件自动生成 PCB 库 第 44 讲 PCB 封装的拷贝 第 45 讲 PCB 封装的检查与报告 第 46 讲 3D PCB 封装的创建 第 47 讲 集成库的创建及安装 第五部分 PCB 流程化设计常用操作 第 48 讲 PCB 界面窗口及操作命令介绍 第 49 讲 常用 PCB 快捷键的介绍

    标签: gjb

    上传时间: 2021-10-26

    上传用户:

  • USB_MICRO USB_MNI USB扁口座 TF卡槽 SOIC8 LQFP32芯片ALTIU

    USB_MICRO USB_MNI  USB扁口座 TF卡槽 SOIC8 LQFP32芯片ALTIUM 库(3D PCB封装库), 3D封装,已在项目中使用,可以做为你的设计参考。详细列表如下:Component Count : 94Component Name-----------------------------------------------32165032-8MHZAMS1117ANT2AntennaBATbuzzerCapCAP-0805CAP-3216CD32Crystal Oscillator 3225HC-06KEY-2PINLED-0603LQFP-100LQFP32LQFP44LQFP44 10X10_LLQFP44 10X10_MLQFP44 10X10_NLQFP48LQFP48 7X7_LLQFP48 7X7_MLQFP48 7X7_NLQFP64 10x10_LLQFP64 10x10_MLQFP64 10x10_NMagMOTONRF24L01NRF24L01-modeOLED-0.96-PIN7QFN20_4X4QFN24_4X4QFN32_5X5remoteRES-0603RFX2401CRPSG90SH1.0mm-4PINSH1.0MM-5PINSH1.0mm-6PINSMA-ANTSMA/DO-214SOIC-8SOP16SOT-23-3SOT-23-5SOT-89SOT-223SPL06-001STM32F030C8T6STM32F030F4P6STM32F103C8T6straight-1x2pinstraight-1x2pin - duplicatestraight-1x2pin - duplicate1straight-1x3pinstraight-1x3pin - duplicatestraight-1x3pin - duplicate1straight-1x4pinstraight-1x4pin - duplicatestraight-1x5pinstraight-1x8pinstraight-1x8pin - duplicatestraight-2x2pinstraight-2x3pinstraight-2x4pinstraight-2x5pinSW-NO/OFF-PIN3SW-SMD1SW-SMD2SWITCH-DIP-6*6*7SX1308TF-CARDTO-263-5TP4056USBUSB_MICROUSB_MNI_BUSB-MICRO-1winding_1x2pinwinding_1x3pinwinding_1x4pinwinding_1x5pinwinding_1x8pinwinding_2x2pinwinding_2x3pinwinding_2x4pinwinding_2x5pinXTAL-5070/SMDXTAL-QC49/SMD

    标签: usb

    上传时间: 2021-12-02

    上传用户:aben

  • IW3617 230V 调光设计参考.pdf

    General Design Specification:1. AC Input Range 180-264Vac, Isolated ac-dc offline, 12LEDS,Output 700mA2. Intelligent wall dimmer detections(Leading-edge dimmer , Trailing-edgedimmer , No-dimmer)3. Multiple dimming control scheme4. Wide dimming range from 1% up to 100%5. No visible flicker6. Resonant control to achieve high efficiency7. High Power Factor, 0.9 without dimmer8. Temperature degrade control to adjust the LED9. Primary-only Sensing eliminates opto-isolator feedback and simplifies design

    标签: iw3617

    上传时间: 2021-12-03

    上传用户:canderile

  • FactoryIO_Template

    Util para programar en plc SIEMENS enlazado con FactoryI/OFactory I/O es un software para automatización en tiempo real donde se puede construir y simular sistemas industriales y utilizarlos con las tecnologías de automatización más comunes. Esta simulación es totalmente interactiva e incluye gráficos de alta calidad y sonido, proporcionando un entorno realista industrial.Factory I/O utiliza una tecnología innovadora que permite una creación fácil y rápida de los sistemas industriales en 3D con solo arrastrar y soltar. Cualquiera de los sistemas construidos se pueden controlar en tiempo real mediante la conexión de Factory I/O y equipos externos como PLC´s, microcontroladores, FPGA, etc.Factory I/O es una valiosa herramienta de enseñanza para la formación de futuros técnicos e ingenieros en varios programas y cursos tales como automatización industrial, Mecatrónica, Ingeniería Eléctrica, Ingeniería Mecánica, Instrumentación y muchos más.Plantillas para Tia PortalTenga en cuenta que debe utilizar un proyecto de plantilla de TIA Portal al conectarse a S7-PLCSIM v13-16. La E / S de Factory IO no podrá comunicarse con S7-PLCSIM de lo contrario.

    标签: factoryio SIEMENS

    上传时间: 2022-01-30

    上传用户:

  • 家庭生物实验指南

    Illustrated Guide to Home Biology Experiments All Lab, No Lecture by Robert Bruce Thompson, Barbara Fritchman Thompson (z-lib.org)

    标签: 生物实验

    上传时间: 2022-01-31

    上传用户:trh505

  • PW4556_2.0.pdf规格书下载

    The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targetedat small capacity battery for portable applications. It is a complete constant-current/ constantvoltage linear charger. No external sense resistor is needed, and no blocking diode is required dueto the internal MOSFET architecture. It can deliver up to 300mA of charge current (using a goodthermal PCB layout) with a final float voltage accuracy of ±1%. The charge voltage is fixed at 4.2V or4.35V, and the charge current can be programmed externally with a single resistor. The chargerfunction has high accuracy current and voltage regulation loops and charge termination

    标签: pw4556

    上传时间: 2022-02-11

    上传用户:1208020161

  • PW4055_2.0.pdf规格书下载

    The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideallysuited for portable applications.Furthermore, the PW4055 is specifically designed to work within USBpower specifications.The PW4055 No external sense resistor is needed, and no blocking diode is required due to theinternal MOSFET architecture.Thermal feedback regulates the charge current to limit the dietemperature during high power operation or high ambient temperature. The charge voltage is fixedat 4.2V, and the charge current can be programmed externally with a single resistor. The PW4055automatically terminates the charge cycle when the charge current drops to 1/10th the programmedvalue after the final float voltage is reached. When the input supply (wall adapter or USB supply) isremoved, the PW4055 automatically enters a low current state, dropping the battery drain currentto less than 2µA. The PW4055 can be put into shutdown mode, reducing the supply current to 25µA.The BAT pin has a 7KV ESD(HBM) capability. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presenceof an input voltage

    标签: pw4055

    上传时间: 2022-02-11

    上传用户:jason_vip1