half wavelength plate的用法和樣例：
例句
- The directions can be obtained by removing the quarter-wave plate and following the procedure for plane polarized light or by interpolation.
可將四分之一波片卸去，並按平面偏振光法或內插法來決定其主應力方向。 - The band width limitation for a multistage waveplate is defined as the allowable wavelength range of waveplates under some restrained conditions.
本文所述帶寬容限是對多級波片而言，即在某些限定條件下，波片允許的波長取值範圍。
