butylenes

butylenes

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例句

Poly(butylenes terephthalate) (PBT) is one of the five important engineering plastics, which had been used widely in many fields.

聚對苯二甲酸丁二醇酯（PBT）作為五大通用工程塑料之一，其應用領域非常廣泛。

Domestic developed technologies for utilization of hydrogen, ethylene, propylene and butylenes in refinery gas are reviewed.

簡述了我國煉廠氣中氫氣、乙烯、丙烯和丁烯等資源的綜合利用技術。

The reaction features of the catalytic conversion of butylenes to propylene and ethylene were investigated.

探索了丁烯催化轉化為丙烯、乙烯的反應特點。