oil pressure test for tightness 油密试验 ; 油压密封试验 ; 油密试验油压密封试验
water pressure test for tightness 水密试验
air pressure test for tightness 气密性试验 ; 气密性气压试验
Tightness test pressure 气密性试验压力 ; 致密性试验压力
Gray iron--an alloy of iron carbon and silicon ; easily cast; good pressure tightness in the as-castcondition.
灰口铁--一种铁碳和硅的合金；易于铸造；在铸态下具有很好的压力紧固性。
Sometimes tightness in our legs may lead us to run with improper form, which may put pressure on a nerve and lead to the numbness.
有时候我们的腿紧张时会使我们以不恰当的形式跑步，这将对神经造成压力并导致麻木。
Tension headaches tend to feel like a pressure or tightness around the head.
患了紧张性头痛，感觉像脑袋周围无法放松，有一圈压力压着似的。
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