Wire forms are springs in every sense of the word, but they are distinguished from other types of springs in that they typically do not have a helix or coil configuration to them.
线材成型弹簧不同于其它类型的弹簧，它们不是螺旋或圈状结构，而是“U”或“V”字形结构。
The control of coil collection station , hardware configuration and software, position control and programming by PLC are discussed.
集卷站控制，硬件组成及软件结构，位置控制和PLC编程的讨论。
The configuration and working theory of test and control system of Fan Coil Unit ( FCU) , and application of PLC in this system are introduced.
介绍了风机盘管测控系统的构成、工作原理及PLC在该系统中的应用。
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