| 释义 |
Smoothstone R.
- smoothnessn. 平滑;流畅 平静;平稳;顺利 圆滑;能说会道
- hearthstonen. 炉底石,家庭,砌炉的石块
- smoothersn. 滑粉
- birthstonen. 诞生石
- amethystineadj. 紫水晶质的,紫色的
- 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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