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...
He was wounded in the shoulder by a ricochet.他被一颗跳弹打伤了肩膀。Her ear, shoulder and hip are in a straight line.她的耳朵、肩膀和髋部呈一条直线。Turkin tapped him on the shoulder. "Sorry to interrupt, Colonel."图尔金拍拍他的肩膀。“不好意思打断您一下，上校。”...
Such detergents do not yellow the wool as alkali tends to do.这种洗涤剂不会象碱那样使羊毛发黄.Development of detergents has required optimization of the surfactants structure.发展洗涤剂时,要求使用最恰当的表面活性剂结构.They may be solubilized by detergents ...
外生变量可以包括内生变量的后滞值.Exogenous variables can include lagged values of endogenous variables.内生植物是明显地被起源于寄生植物的膜包围的.The endophyte is surrounded by a membrane of apparent host plant origin.在盆土内生出毛根.Root the bulbs in potting soil...