我喜欢读书,对于体验间接经历有一种不能满足的渴求.I love reading: I have an insatiable appetite for vicarious experience.他渴求知识.He had a great thirst for knowledge.哦,这就是你一直所渴求的东西.So this is what you've been longing for....
化合物庚烷的主要用途是作为双基推进剂的增塑剂.The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.正庚烷异构化的难点在于高选择性地生成多侧链异庚烷和抑制异庚烷的裂化反应.However, it is difficult to produce multi branched i heptane and re...