... 开启压力cracking pressure 循环circle 螺杆泵：Screw pump ...
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vacuum relief cracking pressure 真空安全开启压力
cracking pressure of valve 阀开启压力
bypass valve cracking pressure drop 旁通阀开启压降
high pressure hydrogenation cracking 高压加氢裂化
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bursting pressure , opening pressure
Thanks to peer pressure, Leiserson was spared the indignity of cracking down on the complainer.
FORBES: Stanford MBA's Virtual Square for Student Q&A
Then, seemingly tired, she squints at the afternoon sun, hesitating before cracking her jaws in the yawning attitude of a passenger in a plane clearing her ears of accumulated air pressure.
NPR: Somalia's Farah: Humanizing a Broken Place
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