| 释义 |
r.ph
- morphn. 词态；[语]语素；变体 vt. 在屏幕上变换图像；改变
- graphn. [数]图表；曲线图 vt. 用曲线图表示
- 浓度的nóng dù de
pH indicator
- 值指示剂zhí zhǐ shì jì
pH indicator
- 负指数指示剂fù zhǐ shù zhǐ shì jì
pH indicator
- 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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