“double board”的概念、定义、翻译、参考文献-科学参考

单词	double board
释义	double board [¦dǝb·ǝl ¦bȯrd] ^{PETROLEUM ENGINEERING} The platform from which the derrick operator works, located at a height on the derrick equal to two joined pipe lengths.
随便看	oceanodromous oceanographic dredge oceanographic equator oceanographic model oceanographic platform oceanographic ship oceanographic station oceanographic submersible oceanographic survey oceanographic vessel oceanography oceanology ocean station vessel ocean thermal energy conversion ocean tomography ocean weather station ocellar ocellus ocelot ocher ochlophobia Ochnaceae Ochoan Ochotonidae ochratoxin A

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