D3D teacher said in the case of 3D mathematical procedures. Include vector, matrix.
基于1个网页-相关网页
Free downloadable vector files include vector Icons, vector patterns, vector swirls, flourishes, backgrounds, wallpapers, Illustrator brushes, and many more.
可免费下载的矢量文件包括：矢量图标、矢量图案、矢量漩涡、花形图案、背景图案、墙纸、Illustrator笔刷等等。
During outbreaks, emergency vector control measures can also include broad application of insecticides as space sprays using portable or truck-mounted machines or even aircraft.
在疾病流行期间，紧急媒介控制措施还包括广泛使用杀虫剂，使用手提或车载喷药机器，甚至飞机，大范围喷洒。
Other control activities include assistance with vector control and health promotion.
其它控制活动包括帮助开展媒介控制和健康促进。
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