如果你看到冒火花的、断裂的或者磨损的电线，或者闻到绝缘体烧焦的味道，在保险丝盒或者断路器断关闭电路。
If you see sparks or broken or frayed wires, or if you smell hot insulation, turn off the electricity at the main fuse box or circuit breaker.
型夹管阀采用的纯树脂橡胶具有优异的抗磨损能力，因为A型夹管阀只是采用气压进行操作，因此没有活动部件会断裂或磨损。
The pure gum rubber sleeve of the Type A Valve offers excellent abrasion resistance, and since the Type A uses only air pressure to operate, there are no moving parts to break or wear out.
往复式压缩机在运行中容易磨损和断裂。
Reciprocating compressors are prone to wear and tear during operation.
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