When chainlike aggregates are found, rather exotic mechanisms are often sought to explain them . 当发现链状的聚焦体时，人们寻求有点异乎寻常的机理来解释它们。
Practical reasons for wanting focus a diverging wave to a point will become evident as we proceed . 至于想把一个发散波聚焦到一个点的实际原因，我们讨论下去就会很明白。
The intervening matter between the source and the observer gravitationally deflects and focuses the light bundle, increasing the apparent angular size of the source . 光源与观测者之间的物质对光束产生引力偏折和聚焦作用，使光源的视角径加大。
A great break through in the hifu system 高强聚焦超声治疗系统的研究取得重大突破
They must be re - aimed often to follow the sun 它们也需要常常根据太阳调整聚焦。
A new method for multi - focus color image fusion 一种新的多聚焦彩色图像融合方法
Testing of optical components ; focussing screens 光学元件的检验.第4部分:聚焦屏
An adaptive fusion method of multi - focus images 一种自适应的多聚焦图像融合方法
Beauty and sadness . focusing on 2003 liaoning novelette 2003年辽宁中篇小说聚焦
