relative distance的用法和樣例：
例句
- The directivity of emitter by changing the number and relative location of ultrasonic transducers are simulated.
通過改變換能器數目及之間的相對距離，模擬了超聲發射陣的空間指向性。 - The presence of the neighboring boundaries enhances the vesicle velocity, but its dependence on the relative vesicle-wall separation distances is not necessarily to be monotonic.
邊界的存在將會加快囊胞粒子泳動的速度，但粒子速度和粒子與邊界的相對距離之間並非呈現一單調遞增的函數關係。
