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- semi decrease period 半衰期
- The teaching of organic chemistry face many problem, such as decreasing period, renewing textbook and simplifying contents. The teaching Reform should be put into effect at contents, method and means. 有机化学教学面临学时减少;教材更新;内容精简等难题。应积极在教学内容、方法、手段等方面进行改革.
- The birthrate is on the decrease. 人口出生率正在下降。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- The decrease in unemployment was 30 percent. 失业人数减少了百分之三十。
- The government projected a tax decrease. 政府计划降低税收。
- There has been a decrease in our imports. 我们的进口减少了。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- Is your production on the decrease? 你们的产量在减少吗?
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- A decrease in signal power as measured between two points. 信号能量在两点间测量出来的减小量。参阅signal。
- He had to decide within a given period. 他得在一定时间内作出决定。
- A decrease, especially a small or incremental one. 减少尤指小规模或逐步增加者的减少
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- A local newspaper remarks that crime is on the decrease. 一家地方报纸评论说犯罪案件在减少。
- Which period of history are you studying? 你正在学哪一段历史？
- There has been a steady decrease in population in this city. 这个城市的人口在持续下降。
