charge-mass ratio的用法和樣例：
例句
- Electrode experiment equipment was developed,and electrostatic spraying charge-mass ratio measurer was developed.
開(kāi)發(fā)了電極試驗裝置，并自制了荷質(zhì)比測試裝置。 - Because the proteins have the same charge-to-mass ratio, and because the gels have sieving properties, mobility becomes a function of molecular weight.
重要的是，這些負電荷中和了蛋白分子的內在電荷，使所有的蛋白質(zhì)具有了相同的荷質(zhì)比，在凝膠的分子篩作用下，遷移速率就變成與分子量相關(guān)。
