Because gas lasers were often used as the light source, their beam had to be coupled into the thin-film wave guides . 由于气体激光器常用作光源，故必须将其光束耦合到薄膜波导中去。
an inconvenience of prism couplers is that the prism material must have a high refractive index . 棱镜耦合器的一个不方便的地方是棱镜材料必须有较高的折射率。
For many purposes, however, the above description is quite adequate in explaining the major features of the prism coupler . 然而，对许多用途而言，用上述的说明来解释棱镜耦合器的主要特点是完全足够的。
The factor which is most detrimental to the formation of the null voltage is the capacitive coupling between the primary and secondary coils . 对形成零电压最有害的因素是初线圈和次级线圈之间的电容耦合。
The linear guide shown in fig. 3. 226 couples to the planar guide via the evanescent field which appears in the gap between the two guides . 图3226所示的条形波导通过出现在两波导间隙的消失场同平面波导耦合。
Spin-orbit coupling is the interaction between the spin magnetic moment of an electron and magnetic field generated by its orbital motion . 自旋-轨道耦合是电子的自旋磁矩和由轨道运动产生的磁场之间的相互作用。
This principle is the basis for the operation of directional couplers, the implementation of which usually takes the form shown in fig. 3. 23 . 这个原理就是走向耦合器工作的依据，其装置一般具有图323所示的形式。
Depending on the degree of mechanical coupling between the drive motor and the head itself, missile motion will tend to disturb the head . 导弹的运动往往扰动头部，这种扰动的强度取决于驱动马达和头部的机械耦合的程度。
The mechanical contribution to this coupling is subject to the hysteresis, metallurgical instability, creep, and slippage at holding clamps . 引起这种耦合的机械因素是由于滞后、金相不稳定性、蠕变和夹以部分的滑移等效应的影响。
