He scrawled his name across the bill, underlining it with a showy flourish.他在账单上潦草地签上自己的名字，并在名字下面画了一条花体线。The furnace top underlining construction is important characteristic of air furnace.炉顶内衬结构是热风炉类型的重要特征.The sleeve ha...
This is called a rarefaction and is represented by widely spaced dots.这个区域称为稀疏区,并用疏散的小点表示.The classical elementary waves in Riemann solutions include rarefaction wave, shock wave and contact discontinuity.黎曼解涉及的经典基本波包括疏散...
性状: 本品为白色或类白色的针状结晶或结晶性粉末, 无臭、味苦.Description: White to whitish needle crystalls or crystal powder, oderless and tasteless.特性: 白色有光泽六面体结晶或白色结晶性粉末.Characteristics: white glossy hexahedron crystal or white crystalline powder...