We continuously inject a tracer into a point in a steadily moving fluid.我们连续地将一种示踪物注入某稳定运动流体中之一点.When ~ ( 238 ) Pu is used as a tracer, its recovery is 77±10 %, with activity being 0.29 dpm.当使用~ ( 238 ) Pu作示踪剂, 强度在0.29dp...
人在压力之下，办事情就容易出差错。Things can easily go wrong when people are under stress .不会出差错.No mistakes could arise.他们了解一切是如何运作的，或者为何出差错，无论是哪种情况，他们都很清楚。They know how everything works — or doesn't work, as the case may be....
After my lecture, the students began to overwhelm me with questions.讲课之后, 学生们开始问一系列问题,使我不知所措.No difficulty can overwhelm us.困难压不倒我们.It was clear that one massive Allied offensive would overwhelm the weakened enemy.毫无疑问，盟...