“防水剂”的英语

喷涂式皮鞋防水剂a spray-on water repellent for shoes摘要采用特殊工艺制备了复合型石膏防水剂.A complex water - repellent gypsum additive was studied in this paper.厂长引进了一种新的石膏防水剂.The production manager introduced a new water - repellent gypsum additi...