这种辐射压力被认为是彗尾形成的原因。 另外，它也是太阳帆在太空中前进的动力来源。
This radiation pressure is thought to shape the tails of comets and is useful for pushing solar sails in space.
细菌与噬菌体间的竞争，不仅是自身选择压力的结果，也是彼此共进化的动力。
The competition between bacteria and phages is not only the result of their own selection pressure, but also the dynamics of their co-evolution.
以前我也是，虽然有考试的压力却始终成不了动力，其间有两次会见老外，去的前一天那单词背的比一个礼拜的都多，所以感觉英语学着是要用的才能掌握。
I used to have an exam is, although the pressure but always be dynamic, there is twice the foreigner, to meet the words of a week of back more than, so feel English learn is to use to master it.
以前我也是，虽然有考试的压力却始终成不了动力，其间有两次会见老外，去的前一天那单词背的比一个礼拜的都多，所以感觉英语学着是要用的才能掌握。
I used to have an exam is, although the pressure but always be dynamic, there is twice the foreigner, to meet the words of a week of back more than, so feel English learn is to use to master it.
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