油管吊卡 的英文怎麼說
中文拼音 [yóuguǎndiàokǎ]
油管吊卡
英文
pipe elevator-
Abstract : discuss a technique of oil tube elevator, introduce the constrution, principle, and safety of the new oil tube elevator latcher, and analyse the economic benefit and the apply prospect of the oil tube elevator with the exchangeable erescent elevator recess
文摘:介紹了新型吊卡銷的結構和原理與安全性,剖析了可更換小月牙式油管吊卡的經濟效益和推廣應用前景。
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