久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

Formerly , surface painting or admixing with water - repellent admixture had low efficiency and relatively high cost.以往, 表面涂覆或摻加憎水劑,效果不大而且昂貴....

admixing的音標：admixing的英式發(fā)音音標為：[?d'm?ks??]admixing的美式發(fā)音音標為：[?d'm?ks??]...

v.使混合，混合( admix的現(xiàn)在分詞 )...