介绍了用于环境污染物结构毒性关系研究的软件，做为软件性能的检验，也进行了62种氮杂环芳胺及其致变活性关系的实例研究。
In this paper, an expert software system for the study of the QSAR on environmental pollution is introduced. The case study of the QSAR of 62 heterocyclic amines has been carried out.
当振管垂直立于磁场环境中时，在交变磁场的作用下产生磁致伸缩，即沿振管的轴向作简谐振动。
Vibration tube in the magnetic field vertically brings about magnetostriction under the effect of alternate magnetic field, that is axis resonance.
再过几年，这砖墙将会变柔和，这样它就会与周围的环境和谐一致了。
The brickwork will mellow over the years so that it blends with the surroundings.
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