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缓爆雷管
meaning in English
delay cap
delayed blasting cap
Related Words
炽热雷管
缓射
缓燃
缓卫
缓利
缓凝
缓诘
缓斜面
缓检年限
缓释片剂
缓办
缓保
缓爆炸药
缓闭阀
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