Changes in the gain could occur if the length of the maser changed because of turbulent gas motions . 气体的湍流运动使微波激射区的长度改变时，增益就可能发生改变。
It can be carried out with microwave equipment at a season when visibility may make anything else impossible . 在通视情况使得其它仪器都无法应用的季节内，可用微波测距仪测量。
The ratio of the microwave radiation to the x-ray bremsstrahlung radiation is dependent on the density in the emitting region . 微波辐射与X射线韧致辐射的比值与发射区的密度有关。
The development of microwave radar during the world war ii also had immense consequences for solid-state physics . 第二次世界大战期间，微波雷达的发展对固体物理学也产生了巨大影响。
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。
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。
He couldn't help but feeling a little bruised by the rippling lightness in his sister's movements and pinpoints of joy in her eyes . 他看见他姐姐的行动象微波荡漾的流水那么轻松愉快，她眼里闪耀着欢乐的光辉，心中不由得感到有点难过。
General specification for microwave broadband amplifiers 微波宽带放大器通用规范
