Compared with relay in controlling lathes, PLC has some advantages such as high reliability, low consumption, small volume, easy maintenance, short developing circle, low price and so on.
PLC在机床控制方面与传统的继电器控制系统相比，具有可靠性高、体积小、功耗低、维护简单、开发周期短、价格低等特点。
The liquid nitrogen union must have several advantages, such as small volume, easy to assemble and disassemble, long life, etc.
液氮管路活接头必须具有空间尺寸小、安装拆卸方便、使用周期长的特点。
The temperature compensation structure has the advantages of small volume, easy to be fabricated, and it can meet the demand of temperature stability in the communication system.
本文所研制的温度补偿结构体积小，易于制作，可以满足对光纤光栅温度稳定性要求较高的光纤通信系统等领域的需要。
The temperature compensation structure has the advantages of small volume, easy to be fabricated, and it can meet the demand of temperature stability in the communication system.
本文所研制的温度补偿结构体积小，易于制作，可以满足对光纤光栅温度稳定性要求较高的光纤通信系统等领域的需要。
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