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二次向量;次要媒介
1、secondary───n.副手;代理人;adj.第二的;中等的;次要的;中级的
2、apsidal vector───半圆形矢量
3、brushes vector───画笔矢量
4、secondary education───中等教育
5、vector arena───矢量竞技场
6、secondary color───次生色;n.合成色,间色;二次色
7、secondary consumer───次级消费者
8、vector───n.矢量;带菌者;航线;vt.用无线电导航
9、secondary school───n.中学;中等学校
1、Orientation can be difficult to perceive with some shapes or at small sizes, though, so it's best used as a secondary communication vector.───在某些形状下,或者尺寸较小时,方位是比较难以察觉的,因此它最好作为次要的传达矢量。
2、In recent years, Aedes albopictus, a secondary dengue vector in Asia, has become established in the United States, several Latin American and Caribbean countries, parts of Europe and Africa.───白纹伊蚊是亚洲第二种登革热传播媒介,近几年已在美国、几个拉丁美洲和加勒比国家、部分欧洲和非洲国家扎下了根。
3、main content: vector algebra, plane and linear space, special surfaces and secondary surfaces, general quadratic surfaces and general quadric surface.───主要内容有:向量代数、空间的平面和直线、特殊曲面和二次曲面、一般二次曲面和一般二次曲面。