当这架波音757载着它的38名乘客和7名机组成员呼啸而过匹兹堡时，空中管制疯狂地通过无线电呼叫机组人员。
As the 757 and its 38 passengers and seven crew members blew past Pittsburgh, air-traffic controllers tried frantically to raise the crew via radio.
揭示了混凝土在准静载下裂纹扩展与电发射脉冲之间的关系。
The relationship between electric emission pluse and the propagation of cracks in concrete under quasi-static loading is exhibited.
碰撞，匝链电路中由于磁通量而造成电伏减少的单位，等于穿过一载流线圈的磁通量与线圈匝数之积。
A measure of the induced voltage in a circuit caused by a magnetic fluxand equal to the fluxtimes the number of turns in the coil that surrounds it.
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