准直带 collimation: n. 校准,瞄准;【物理学】准直。 adjustment for collimation: 视准轴校正auto collimation: 自准axis of collimation: 视准轴,准直轴; 校准轴; 准直轴beam collimation: 光束准直; 射线束准直; 束良直下载手机词典可随时随地查词查翻译