aster
n. [植]紫菀属植物；星状体
n. （Aster）人名；（德、意、捷）阿斯特尔
例句
The optimum extraction conditions of shionone from herbs Tatarian aster root were studied.
这研究了紫菀药材中挥发油酮的最佳提取条件。
The mound was not visible in an ASTER image acquired in late 2008.
这块高地在2008年底拍摄的图片中还看没有。
Terra's ASTER sensor captured this view of filaments of blue-green algae swirling across Guatemala's Lake Atitlán on November 22, 2009.
2009年11月22号，绕地卫星上的热发射和反射接受器捕捉到了这种蓝绿细丝状水藻旋转越过危地马拉的亚提特兰湖。
