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...
He finally faltered in the last game of a heroic match.他在这场艰苦比赛的最后一局中踉跄结束。She faltered, and then her face crumpled once more.她的声音颤抖起来，随后又露出一脸苦相。As he neared the house his steps faltered.当他走近房子时，脚步迟疑了起来。...