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不锈钢锥环密封
释义
不锈钢锥环密封
seal with stainless cone-ring seal by stainless conical ring
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preevacuate
preevacuated chamber
preevacuating
pre-evaluation test
pre-evaporator
preexamination
pre-excitation syndrome
preexcitation wave
pre-excited CO laser
preexciter oscillator
preexciting
preexhaust
pre-existent pore
preexisting cell
preexisting crack
preexisting fault
preexisting fracture
preexisting fractured zone
preexisting micro-feature
preexisting mountain belts
pre-expander
pre-expansion saturation
pre-expansion track
pre-exponential factor
preexport financing
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