The relay inner part shall be clean, connection solid, all part is perfect, flexible and liable.
继电器内部应清洁、接线牢固、各部件完好,动作灵活、可靠。
Check whether the water pipes crack Yang, connection is solid.
检查扬水管有无裂纹,连接是否牢固。
It is the structure characteristics of a solid substrate connection closed sealing hole mesh structure.
它的结构特点是一种固态基质联接的闭封口孔网状结构。
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