... 内啮合齿轮泵 inner engaged gear pump 内裙罩 inner skirt 内燃机 internal combustion engine ...
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Outer skirt length 65cm, inner skirt length 75cm, there is elastic waist skirt, the outer skirt has a waist cloth with adjustable waist.
外裙长65 CM左右，里裙长75 CM左右里裙腰部有松紧的，外裙腰部有一根布带可以调节腰围的。
Composite pistons of various types are widely used in internal combustion engines, such as steel crown and aluminium skirt type, inner and outer pistons type, and so on.
在内燃机中组合式活塞结构应用广泛，例如钢顶铝裙活塞、内外组合活塞等。
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