Many PAHs are carcinogenic or are suspected to be carcinogenic.其主要来源于煤的不完全燃烧,也有相当部分来源于汽车尾气的排放.The both carcinogenic factors were investigated on its dose - response ralationships.研究上述两种致癌因子的剂量 - 效应相关模式.Some industrial ch...
Like most of Jupiter's moons, Amalthea rotates synchronously; its long axis is pointed toward Jupiter.像大多数的木星卫星, 木卫五同步自转, 它的长轴直指木星.The motor of this cargo winch rotates too quickly. It needs readjusting.这台起货机的马达旋转太快...
Objective To probe the effects of lumbricus on wound healing after hemorrhoidectomy.目的探讨地龙对痔术后创面愈合的影响.Objective: To observed and evaluate the effectiveness of stapled hemorrhoidectomy.目的: 为观察和评估痔切闭术的优缺点.Objective To stud...
a white satin ribbon白色缎带The final stage of waxing left it with a satin sheen.最后上完蜡后，它看起来犹如缎子般光滑亮泽。Gold and green satin brocade drapes hung at the windows.窗上挂着金碧辉煌的缎子窗帘.Braves cotton fabric on white satin.勇士在白色缎棉织物.She ha...