| 释义 |
colotepec r.
- colorimetern. 色度计；比色计
- topographicaladj. 地志的;地形学的
- topographern. 地志学者,地形学者
- 读、写、算dú _ xiě _ suàn
the three R's
- 每分钟转数měi fèn zhōng zhuǎn shù
revolutions per minute (r/m)
- 阴极射线管yīn jí shè xiàn guǎn
cathode-ray tube (CRT); cathode-ray lamp; C-R tube
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