单词：water head
water head的用法和样例：
例句
- The head distribution is different in the two layers.两层中的水头分布不同。
- The critical velocity and the head loss gradient of slurry pipelines are important design parameters.临界速度和水头损失坡降是浆体输送管道的重要设计参数。
词汇搭配
- keep one's head above water免遭灭顶之灾...
- hold one's head above water头在水外
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