单词：safety switch
[化] 安全开关; 紧急开关
safety switch的用法和样例：
例句
- If a cylinder ejector must be used, incorporate a proximity safety switch and use non-ferrous materials where it enters the die, or it must be of positive return design.如果必须使用汽缸，使用一个移接近的安全开关，并在其进入模具的部分使用不含铁的材料，或者在设计上它能合理的返回。
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