短語(yǔ)詞組短語(yǔ)rate of conveyance loss 輸水損失率conveyance loss in canal 渠道輸水損失water conveyance loss 輸水損失measurement of channel conveyance loss 渠道輸水損失測(cè)驗(yàn)Loss conveyance 輸水損失 返回 conveyance loss