压力点火头
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differential pressure firing head 压差
pressure firing head
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In this manner, when the motor pressurizes upon firing, the pressure forces the gaskets flat against the head, subsequently forcing the perimeter edges of the gasket tightly against the casing wall.
以这种方式，当电机迫使后，射击，压力迫使垫圈单位对头部，随后迫使周边边缘的垫片紧紧对套管墙。
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