hydrometric propeller是什么意思 hydrometric propeller怎么读
hydrometric propeller的相关资料
hydrometric propeller的用法和样例
- From its application, rotation times of streamlined weight become lower, failures of current meters also decrease, thus greatly improving life time of hydrometric cableway.
从使用情况看，铅鱼的旋转频率降低了，流速仪的损坏减少了，从而有效提高缆道的使用寿命。
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