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二次飞行
1、secondary───n.副手;代理人;adj.第二的;中等的;次要的;中级的
2、secondary consideration───次要考虑
3、secondary school───n.中学;中等学校
4、secondary education───中等教育
5、secondary stress───[力]次应力;次重音
6、secondary color───次生色;n.合成色,间色;二次色
7、secondary succession───[植]次级演替;次生演替系列
8、secondary consumer───次级消费者
9、secondary products───次级产品;副产品
1、Activator can enhance remarkably the activity of fly ash and accelerate secondary hydration reaction of high fly ash content concrete.───激发剂能显著提高粉煤灰的活性,加速高掺量粉煤灰二次水化反应。
2、secondary hydration of high fly ash content concrete is slow at the early period and then the velocity of it gradually increase.───高掺量粉煤灰混凝土早期二次水化较为缓慢,随后二次速度逐渐加快。
3、North-secondary school children said that the one we moved to say: Tuozhe heaven on the wings of hope that their loved ones, you have to fly high.───北川中学孩子们还说了一句感动我们的话:翅膀上驮着天堂亲人的希望,你要高高飞翔。