查询词典 winch

One electric-motor driven mooring winch of 50KN in capacity will be installed on the poop deck.

提供1台功率为50kn 的电力驱动系泊绞车，安装在尾楼甲板。

And a powerful winch was put into operation.

一台在功率的绞车开动起来。

The winch mechanism consists of hydraulic motor, deceleratingmachine, ratchet wheel stopping machine and reel.

所设计的起升机构包括液压马达、减速机、棘轮停止器和卷筒几部分。

The damage of the derrick was due to the careless handling of the ship's crew in lowering the derrick, causing the topper to override the ratchet wheel and foul onto the topping winch drum shaft.

该吊杆的损坏是由于该轮船员在将吊杆放低时因操作不慎而造成千斤索越过棘轮，缠绕在千斤索绞车卷筒轴上。

The steam driven winch can also be manually operated by use of the wooden rocker arm beam to the rear.

蒸汽驱动的绞车也可手动操作的使用木制摇臂束向后方。

Winch cable hooks must have a working safety catch.

绞盘缆绳挂钩必须使用安全挂

Understanding the purpose and safe use of winch accessories such as a snatch block can be invaluable when you need it most.

了解的目的和安全使用绞盘配件，例如作为一个抢夺座可宝贵当您最需要的。

Now imagine we also had a spring scale hooked to our winch, so we would know exactly how much pressure was on the rope at all times.

可以想象，我们现在也有春天规模钩我们的绞车，所以我们会知道到底有多少压力的绳子在任何时候都。

The research work of this paper is divided into five parts: The first ,according to the work characteristics of ship's auxiliary boiler, this paper is to design applied project in the automatic control system of ship's auxiliary boiler; The second, according to the work request of the cargo winch of alternating three-speed change-pole speed-adjusting, this paper is to determine adopting the method of the PLC control; The third, this paper is to design PLC application in three -phase induction motor control, to give the ladder chart, program and input and output circuit diagram; The fourth, this paper is to research the method of the ship's combined starting screen automatic control with the PLC; The fifth, this paper is to inquire the possibility of apply the PLC in ship's engine room surveillance system; According to the comprehensive analysis of above actual example of ship's auxiliary machinery automatic system with the technique of PLC; not only can use the technique of PLC to replace traditional relay-contactor control technique in ship's auxiliary machinery automatic system, but also can get the conclusion of the former is more dependable and more clever than the latter, the maintenance is more convenient, thus develop a new path for ship automation.

本文研究的工作主要包括五个部分：第一，根据船舶辅锅炉的工作特点，设计PLC在船舶辅锅炉自动控制系统中的应用方案，主要有PLC选型及输入输出点的设计，画出系统控制梯形图并分析工作原理；第二，根据交流三速变极调速起货机的工作要求，确定采用PLC控制的方法，进行控制系统的硬件设计和软件设计，并分析工作原理：第三，设计了PLC在三相异步电动机控制中的应用，给出了控制梯形图、程序及输入、输出接线图；第四，研究了用PLC实现船舶组合起动屏自动控制的方法，进行了系统的电源设计和软件设计，给出系统工作流程图；第五，探讨了船舶机舱监视系统应用PLC的可行性，将继电器报警线路改为用PLC控制报警，给出系统硬件图和软件梯形图，并分析了PLC机的选型、抗干扰和应用PLC的经济效益和社会效益等问题。综合以上船舶辅助机械自动控制系统采用PLC技术的实例分析，可以得出船舶辅助机械自动控制系统不但可以使用PLC技术取代传统的继电器接触器控制技术，而且前者比后者更可靠、更小巧，维护保养更方便的结论，从而为船舶自动化开辟了一条新的路径。无忧毕业设计网 www.5ubs.cn

The clutch control rod of the topping lift winch suddenly jumped out from its original position and the topping lift wire rope freely ran out.

千斤绞车离合器控制杆跳出原位，千斤索松脱。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。