典型的布局型钢包括工字钢 、 槽钢 、 三角铁和丁字钢.Typical structural steel shapes include beams, channels, angles and tees.三角铁是一种很容易掌握的简单乐器.A triangle is a simple instrument to master....
Antigen interacts with the surface of sensitized mast cells.抗原与致敏的肥大细胞表面互相作用.Another method of maintaining antigen persistence is through use of an adjuvant.使用佐剂是保持抗原持续存留的另一方法.Antigen density on the tumor cell surface in...
主教要求信徒们呆在家中。The Bishop directed the faithful to stay at home.他最近才皈依天主教，是一名狂热的信徒。He was a recent Catholic convert, and very zealous.他的家成了信徒们的避难之处。His home became a place of refuge for the believers....
Mr Nicholas made his emotional plea for help in solving the killing.尼古拉斯先生恳请帮助以解决这起凶杀案。The director of the charity made an impassioned plea for help.慈善机构的负责人强烈请求帮助.a plea for clemency乞求开恩Phillips murdered his wife, but g...