It in plasticizer and soft vinyl resin, also has the good dispersivity.它在增塑剂和软性乙烯树脂中, 也有良好的分散性.The present key problem on bad dispersivity and stabilization of rosin size is solved aptly.较好解决了目前施胶剂的分散性和稳定性不良这一关键性问题....
Construct an animation showing the tangent sweeping out the interior of astroid.建构一动态绘图:展示星状线的切线所有扫掠过的内部轨迹.Construct rotating cardioid and astroid while remaining orthogonal to each other.作旋转的心脏线和旋转的星状线,且彼此维持正交.Construct...
去年瑞典人平均休病假27天。The average Swede was off sick 27 days last year.瑞典人通过秘密的外交手段来争取他的自由。The Swedes had sought his freedom through quiet diplomacy.在世界车手锦标赛上，领先选手比瑞典人快一步冲线。The world drivers' championship leader crossed the...