Snape wrote a receipt with a gold fountain pen.斯内普用金笔开了一张收据。He crossed the line three seconds clear of Tom Snape.他领先汤姆·斯内普3秒冲过终点线。At the perfect moment he slides to his feet, catches Snape's elbow.在这完美的一刻,他轻移脚步, 抓住了...
The paper introduced the technical progress in air curing fluorinated polyurethane coatings.介绍了常温固化含氟聚氨酯涂料的研究进展.Meanwhile , fluorinated acrylate latexes performed better based on present experimental parameters.三种材料中, 含氟...