counter pressure的用法和樣例：
例句
- "A sweet temper" is a figurative expression, but "sweet coffee" is not.
"甜蜜的性情"是個比喻的說法，而"甜咖啡"則不是。 - Variable back pressure is the superimposed back pressure that will vary with time.
可變背壓是隨時間變化的附加背壓。 - Diplegs play an important role as pressure seals against the considerable back pressure generated.
料腿則起著對產生的相當大的背壓加壓密封作用。
