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

液體膠合劑會遮住兩層之間的接縫.The liquid cement will cover the slit between the layers.所用的膠合劑必須對兩種材料都適用.The cement used must be suitable for both materials.把膠合劑拿過來,我要粘東西.Would you pass me the adhesive? I want to stick something....

“膠合劑”的英語可以翻譯為：agglutinant ...