frontal surface的用法和樣例：
例句
- Weather fronts are bound up with a frontal cyclone.
天氣的鋒面和鋒面氣旋密切相關。 - The wetting front moved nearly parallel to the soil surface, and its length could be described by a power function of time, when the distribution of initial soil water was uniform.
當初始含水量分佈均勻時，降雨入滲過程中濕潤鋒面幾乎平行坡面運移，濕潤鋒深度與時間的關係可用冪函數描述。 - Soft frontal lighting smooths over form.
軟正面照明平滑的形式。 - The enemy made a frontal attack on our troops.
敵人對我們的部隊發動了一次正面的進攻。
