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- Thus any rock found bearing these index fossils can be dated fairly accurately as belonging to their proper period in history. 因此凡是发现含有这类标准化石的岩石就可以相当精确地断定它们在地质史上属于某个相应时代。
- The DO curve of DW was routine, while that of PW showed proper periodic fluctuant. 试验中无毒生活污水的DO曲线符合常规变化,有毒制药废水的DO曲线出现了特有的周期性波动。
- "In A.D. 1735, Emperor Qianlong ascended the throne in the most properous period of Qing Dynasty. "公元1735年，大清帝国达到鼎盛时期的乾隆皇帝登基即位了。
- I advise waiting till the proper time. 我建议等到适当的时候。
- 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。
- I do not think it's proper for you to behave so. 我认为您这样的举止不合体统。
- It's not proper for you to catch him up very short. 你突然打断他的话是不恰当的。
- She's not at all a proper person for you to know. 她可不是正派人，你不应该结识她。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- She hadn't had a proper holiday for years. 多年来她都没有过真正的假期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- The company does not take proper fire precaution. 公司未采取正当的防火措施。
- Water is not a proper substitute for wine. 水不是酒的适当代用品。
- The pages aren't in proper order. 这些页数次序不对。
- Recycling is the only proper way. 循环再生是惟一的好办法。
- He had to decide within a given period. 他得在一定时间内作出决定。
- It's hard to get at the spark plug without a proper wrench. 没有一把合适的扳钳，要抓住那个火花塞是困难的。
- 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。
