用“depressant”造句大全，depressant造句
Anyofvariousdepressantdrugsusedtoreducetensionoranxietyandtotreatpsychoticstates.Thoughalcoholisadepressantthatwillhelpyoufallasleepintheshortterm,onceitseffectswearoff,itcancauseyoutowakeupprematurel...
用“pour point depressant”造句大全，pour point depressant造句
polymericpourpointdepressantadditivePreparationofacrylate-styrene-maleicanhydrideterpolymeraspourpointdepressantApourpointdepressant(PPD)forimprovingthecoldfluidityofdieseloilswasstudied.Ateststudyoni...