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- The pouring of sewage water in great quantity and the pollutants contained in the water of Changjiang has affected the self purification in costal water. 通过对上海滨岸带水体的深入调查、样品采集、分析测试和对比研究,对上海滨岸带水体的自净作用进行了总体评价。
- The host machine has modular and the structure of screw and barrel are designed with precision by com-puter,It has perfect self purification and interchangeability. 主机采用积木式原理设计，其螺杆构型，筒体结构，采用计算机精确设计，具有优异自洁性和任意互换性。
- water requirement of a stream's self purification 河道自净需水量
- water requirements for self purification of the stream 自净需水量
- I do not like to go to the movies by my self. 我不喜欢自己一个人看电影。
- I my self is going to make a sandwich. 我要亲手做个三明治。
- He was a wreck of his former self. 他身体坏得不成样子，已兴从前判若两人。
- The office has been humming with activity. 办公室一直忙着搞活动。
- Knowledge of self increases as one gets older. 随着年岁的增长，人们的自我认识也不断加深。
- The threat of war has depressed business activity. 战争的威胁使经济萧条。
- He's not looking like his old self lately. 他最近看起来不像以前那样。
- There has been a lot of activity in the town today. 今天市中心相当热闹。
- He is my best friend, my second self, as it were. 他是我最好的朋友，或者说，是第二个我。
- The town was humming with activity. 该市镇生气勃勃，呈现一片热闹的景象。
- He never has any thought of self. 他从不考虑个人得失。
- He is now out of all conceit with his former self. 他现在全盘否定了他原来的自己。
- Reading a good book may bring purification to souls. 读一本好书可以带来心灵的净化。
- Stamp collecting is my favorite activity. 集邮是我最喜爱的消遣。
- The store was a scene of great activity. 这家商店顾客盈门。
- He once engaged in anti-government activity. 他一度从事反政府的活动。
