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....
遍山的长寿花, 就是现在的人参.The longevity flower people say , is today's ginseng.只是一株长寿花, 而非希腊少年.A jonquil, not a Grecian lad.所以, 它因好养 、 花期长而得名——长寿花.Therefore, it is because of good support, and long flowering period is named -...
Ninety per cent of lone parent families are headed by mothers.90%的单亲家庭由母亲持家。Ninety-nine per cent of primary pupils now have hands-on experience of computers.现在，99%的小学生都亲手操作过电脑。Secret investigations have netted ninety sta...