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vacuum tightness
meaning in Chinese
真空度
真空密闭
真空密封度
真空气密性
Related Words
tightness
leak tightness
weather tightness
liquid tightness
chest tightness
dust tightness
steam tightness
reservoir tightness
manpower tightness
air tightness
vacuum tight tank
vacuum tight water cooled metal bell
vacuum tigt
vacuum topping
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