| 释义 |
Foupana, R.
- fourpennyn. 四便士；价值四便士之英国银币 adj. 四便士的
- fourpencen. 四辨士；四辨士银币
- 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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