单词 | 平行光管 |
释义 | 〔collimator〕A device capable of collimating radiation, as a long narrow tube in which strongly absorbing or reflecting walls permit only radiation traveling parallel to the tube axis to traverse the entire length.准直仪,平行光管:一种能使射线成平行状的仪器,如一个狭长试管的强烈吸收或反射的内壁,使得射线只有在和试管轴线相平行时才能穿过整个试管 |
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