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by-pass valve
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by-pass valve
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by-pass valve
旁通阀
当钻井过程中发生溢流且钻头水眼被堵无法进行压井时,用于循环或压井的装置。
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osteoid osteoma
osteoid tissue
osteoinduction
osteoinductive factor
osteolepiforms
osteomalacia
osteoma of the nose and nasal sinus
osteomyelitis
osteomyelitis of the jaw
osteon
osteopetrosis
osteophone
osteoporosis
osteopractic family
osteopractic fern
osteopractic genus
osteoprogenitor cell
osteosarcoma
osteostracans
O. Stern
O. Stern, 1888—1969
Osterwalder
Osterwalder-Schrader axiom
ostia
ostinato
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