在他工作之前，他要穿上两套防护服，四双手套，一个带有呼吸系统的安全帽，这所有的一切都是为了把自己规整的实在，确保没有一丁点的皮肤暴露在外。

Before he starts he must put on two sets of protective clothing, four pairs of gloves and a helmet with breathing apparatus, all of which is taped up so that not a particle of skin is exposed.

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本文以三层电梯为设计对象，结合三垦vm 06系列恒转矩高性能变频器，开发出一套交流双速的PLC电梯控制系统。

In this paper, three elevators for the design of objects, combined with Sanken VM06 series of high-performance constant torque converter, developed a two-speed exchange of PLC elevator control system.

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EH4电磁成像系统是一套双源型电磁法数据自动采集和处理的物探系统，它是CSAMT和MT的结合体。

EH4 electromagnetic image system is a set of dual-power electromagnetic auto collecting and processing geophysical exploration system. It is a combination of CSAMT and MT.

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