In the absence of ground acceleration data, the nature of the input excitation can be inferred only from structural behavior . 在没有地面加速度数据的情况下，只能从结构的性状来推测输入激振的性质。
At low temperatures, the difference in population of atoms between two energy levels, which is the basis of maser action, is greater . 在低温下，作为微波激射作用基础的两个能级之间原子数的差别较大。
Carcinoid flush cannot be reproduced by 5-ht infusion though bradykinin injection will produce a tolerably close imitation . 5HT的输注不能引起类癌性潮红，相反，舒缓激肽的注入则可得到较近似的阳性结果。
A number of electromagnetic vibration exciters of a large size have been produced for vibration testing in the aircraft and missile industries . 为了进行航空及导弹工业的振动试验，已经建造了若干大型电磁式激振器。
the region is otherwise undistinguished at optical and radio wavelengths, but it does contain a number of oh and maser sources. 此区在光学和射电波段是不著名的，但却包含有许多OH和微波激射源。
During the early nineteen-fifties a remarkable device known as the maser came into being through the efforts of a number of scientists . 在本世纪五十年代初，通过许多科学家的努力，出现了一种引人注目的器件，叫做微波激射器。
The most likely and obvious radiative connection between the infrared and the masers is through the mechanism of radiative pumping of the maser . 红外辐射及微波激射间最可能而又明显的辐射联系是通过微波激射的辐射抽运机制实现的。
Oh , it ' s great mood , do we have any ice - cream 噢,气氛不错，我们还有冰激淋吃么？
Your selfish brother took all the ice cream 你自私的弟弟把所有的冰激淋都吃了。
Matter agitation . you heat a creature or object 物质激灼：加热一个物体或生物。
