常見例句雙語例句Reserch Progress in Comprehensive Utilization of Spent Acid and Waste Water in Titanium Dioxide Production;介紹了目前國內(nèi)外鈦白廢酸、廢水的利用與治理技術(shù)。In conventional acidizing to low permeability reservoir, the formation will be damaged again owing to the unthorough flowback of the spent acid, so foamed acid has been used.針對應(yīng)用常規(guī)酸化技術(shù)對低滲油層進行改造時，由于返排不徹底對其造成二次污染，故建議使用泡沫酸。The gel breaking experiments show that the gel breaker in variable-viscosity acid highly contacted with spent acid in the high shear rate contribute to the swift and complete gel breaking.在高剪切速率下，變黏酸中的破膠劑能與殘酸充分接觸，使其能夠快速、完全的破膠；lib.swpu.edu.cn 返回 spent acid