| 释义 | 
             
                Pusur R.
                
            usurpern. 篡夺者;篡位者;僭取者pursuern. 追求者;追捕者;研究者;原告usurpvt. 篡夺;夺取;侵占 vi. 篡夺;篡权upsurgen. 高潮,高涨 vi. 涌起,高涨
 读、写、算dú  _ xiě  _ suàn 
 the three R's阴极射线管yīn jí shè xiàn guǎn 
 cathode-ray tube (CRT); cathode-ray lamp; C-R tube絮凝反应xù níng fǎn yīng 
 flocculoreaction; F. R.每分钟转数měi fèn zhōng zhuǎn shù 
 revolutions per minute (r/m)
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