The specimen is installed inside the aboveground test section.地上试验段参试物安装在管内.Can determine a chemical into the EU limit for hexavalent chromium test instructions.可用化学法进一部确定,欧盟针对六价铬的测试限量指令.Either measure the temperature wi...
So far 57 have taken the test and all have been negative.到目前为止，参加测试的有57人，测试结果均呈阴性。He suggested a link between class size and test results of seven-year-olds.他认为7岁大的学生的测试分数和班级的规模有关系。A positive pregnancy test soon confirme...
他与朋友合伙经商.He associated himself with his friend in a business undertaking.经商成功不一定赚钱.Business success does not automatically lead to financial success.为了帮助兄弟经商,他放弃休假.He sacrificed his holiday to help his brother's bus...
to weld a broken axle焊接一条断裂的轴Where did you learn to weld?你在哪儿学会的焊接技术？They will also be used on factory floors to weld things together.它们也可用于工厂车间，用来焊接物体。...
The forebody design a key issue for hypersonic airbreathing vehicle.前体设计是吸气式高超声速飞行器设计的关键之一.It would reach hypersonic speeds -- five times the speed of sound.也就是说,要使飞机达到特超音速—即音速的五倍.hypersonic aerodynamics高超音速空气动力学rarefied...