对于有相对简单的，不定向的相互作用的液体，像有机液体，可能会有范德瓦耳斯相互作用。

For liquids with relatively simple non-directional interactions, things like organic liquids that might interact van der Waal's interactions.

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中波天线大部分采用铁塔天线，非特殊地形或特别要求的服务区外，均采用不定向天线。

While mid-wave antenna is mostly iron tower antenna, we do not use directional antenna except that we need special service in special area.

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带前缀的运动动词不再有定向和不定向之分，但也可表示动作方向，这种方向是由前缀体现的。

Sport verb with prefix don't have the separation between the definite direction and indefinite direction, but can mean to act the direction, this kind of direction to be used by prefix now.

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This stem cell which is reproduced still has the potential to undergo asymmetric division but this one does not.

新生成的干细胞,仍然有潜能进行不对称分裂,但定向祖细胞就不行

耶鲁公开课 - 生物医学工程探索课程节选

One result of this asymmetrical division is a committed progenitor cell.

这种不对称分裂的一个结果,是产生定向的祖细胞

耶鲁公开课 - 生物医学工程探索课程节选