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butane-butene
earth.sc. 丁烷-丁烯
oil 丁烷-丁帰〔溜份〕 (fraction)
butane-butene cut fraction
oil.proc. 丁烷一丁烯馏分
butane-butene: 9 phrases in 6 subjects
General1
Oil / petroleum1
Oil and gas1
Oil processing plants2
Plastics2
Polymers2