释义 |
Ecker, R.
- checkern. 检验员;收银员;棋子;方格图案;制止者 vt. 把...
- wreckern. 使船失事的人,肇事者;失事现场清理人;打捞船
- Beckern. 贝克尔(美国经济学家)
- deckern. 装饰者;甲板水手
- 读、写、算dú _ xiě _ suàn
the three R's
- 枕横沟zhěn héng gōu
Ecker's fissure
- 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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