Hypersonic wind tunnels operating at very low densities were developed starting in about 1960.低密度超音速风洞大约开始发展于1960年.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.FEM FCT is used ...
是低温使水变成冰的 吗 ?Is it the low temperature that turns the water to ice?这是雪和冰的结晶体.It is snow and ice crystals.覆盖着冰的路面对驾驶汽车的人是个危险的隐患.Icy roads are a hidden danger to motorists....
These variables combine to produce flatulence of varying quality and quantity.由于这些因素的综合影响,便产生了种种不同的肠胃胀气.You should utilize the initializer syntax for both static and instance variables.你应该在静态变量和实例变量上面利用初始化语法.Target funct...