旬时

年过八旬时他经历了妻子和儿子的去世。但是他仍不认为自己应该走下坡路了，于是他开始跑步。

In his late 80s , after the deaths of his wife and son , he decided he was not yet over the hill and took up running .

就中学英语教学中的礼貌语言而言，主要表现形式有人称代词、模糊表达、疑问旬式、时体语态等。

In terms of the linguistic expressions of politeness mainly used in ELT in secondary schools , there are inclusive we , hedging devices , interrogative sentences , the simple past tense , the progressive aspect and the passive voice .

但随着水库运用时间的增加，泥沙淤积将造成大量库容损失，9月分旬控制水位确定时必须要考虑泥沙淤积的影响。

With the increase of the using time of reservoir , the sediment deposition can cause big loss of the reservoir volume , and which will affect the confirmation of the control water level in September greatly .

利用全国小麦赤霉病产量损失资料、旬平均气温、旬降水量、旬日照时数、旬阴雨日数等资料，根据动态综合聚类指标，建立了赤霉病对小麦产量造成损失的动态预测方法。

The method was developed dynamically to forecast yield loss of wheat scab by using the data of yield loss of wheat scab and ten-days average temperature , ten-days precipitation , ten-days sunshine , ten-days precipitation days and the index of composite cluster analysis .