Hydrocarbons ( HC ), like carbon monoxide, represent unburned and wasted fuel.碳氢化合物 ( HC ) 像一氧化碳一样, 为未燃尽的和被浪费掉的燃料.With this restricted frequency range it is not applicable to hydrocarbons.这个较紧缩的频率范围不适用于烃类.These compounds...
“套”的英语可以翻译为：cover，case，a bend of a river or a curve in a mountain range，sheathoverlap，interlink，slip over，[方]sew a padding [wadding] into a jacket or a quilt（罩在外面的） over，outer（用于成组的事物） set，suit，suite，series ...