... 取样误差 sampling error 抽样枪 sampling gun 取样检验 sampling inspection ...
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sampling gun stead 等速取样枪
gun grease sampling 管式采样器取样
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A sampling switch arranged on the gun tube can reduce the occurrence of dummy guns, thereby guaranteeing the effect of bird dispersing.
炮管上设置的取样开关还能减少哑炮的出现，从而保证驱鸟的效果。
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