丁烷

Objective To establish a method of breath-butagas testing of mental patient.

目建立一种精神病人呼出气中烷检测方法,用以诊断精神病患者。

The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials.

以庚醛、代酸钠和溴代烷为原料,合成了庚醛醇缩醛。

There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.

泥岩比纯岩所产气体中含有甲烷、乙烷、异烷和异戊烷。

The operation pressure of debutanizer was unstable since a light hydrocarbon recovery unit had been put into use.

某轻烃回收装置自投用以来,脱烷塔操作压力一直不稳定。

The catalysts on studying can divide into two kinds: the transition metal bifunctional catalysts and the nitride, carbide and oxycarbide catalysts of transition metals.

目前,烷脱氢异构催化剂可以分为两类,过渡金属双功能催化剂和过渡金属氮化物、碳化物和碳氧化物催化剂。