rate of phase change的用法和樣例：
例句
- Each small peak in the carrier would travel to the right with the usual phase velocity.
載波中的每個(gè)小峰都以通常的同相速度向右方運動(dòng)。 - The phase velocity dispersion and the numerical phase velocity errors ofelastic wave staggered-grid high-order difference method in anisotropic medium havebeen studied.
研究了各向異性介質(zhì)中彈性波動(dòng)方程交錯網(wǎng)格高階差分法求解的數值相速度色散和數值相速度誤差。
