From its application, rotation times of streamlined weight become lower, failures of current meters also decrease, thus greatly improving life time of hydrometric cableway. 從使用情況看,鉛魚(yú)的旋轉頻率降低了,流速儀的損壞減少了,從而有效提高纜道的使用壽命。
traditional current velocity instrument的相關(guān)資料: