periods的例句（periods在句子中的用法）

• The school day is divided into seven periods. 学校一天有七节课。
• Long dry periods wasted the land. 长期干旱使土地荒芜了。
• But the money had come to mark off his weaving into periods. 但是,金钱却终于把他的织布活儿分成许多阶段.
• During periods of cold temperatures, increase the energy content of the diet. 在冷温度时期增加日料的能量含量.
• Periods when diseases spread around the world are called pandemics. 疾病在全世界范围内传播时期称为大流行.
• The weather will consist of sun shine interchanging with periods of light rain. 天气将是晴天和小雨相间.
• The sunshine interchanges with periods of light rain. 天气时而放晴,时而有小雨.
• The current evolutions during address and sustain periods of different electrodes, were calculated , respectively. 给出了寻址周期和维持周期各电极上的电流变化过程.
• Her everyday reportage seems to consists of joyful epiphanies followed by periods of self - doubt and isolation. 她每一天的记录都似乎包含了由 自我 怀疑和孤立所形成的欢欣.
• Cetaceans reduce the number of breaths they take during rest periods. 鲸类动物在休息时减少它们的呼吸次数.
• However the pattern of asymmetries is different for the pre - and post - QFII periods. 然而,格局的不对称性是不同的为 会前 和会后QFII时期.
• Hydrostatic pressure from standing for long periods exacerbates the problem. 长期流体静压升高使得静脉曲张加重.
• Scientists are experimenting to find ways to ensure the viability of seeds for even longer periods of time. 正如我们所说，科学家正在试验努力寻找让种子的生命力更加延长的方法。
• one of the most prolific periods in her career 她的创作生涯中成果最丰的时期之一
• He's only away for short periods, a week at the longest. 他只是短期外出, 最多一周.
• Other insects such as cicada have 3 periods in its lifecycle. 而另一些昆虫,像蝉,一生中有3个阶段.
• ...periods of lassitude and inactivity. 阶段性的乏力懒怠
• SFE could elevate the activity of invertase in vivo during the periods of flowering and pod - filling . 在大豆的开花期和结荚期, SFE 可以增加蔗糖酶的活力.
• He has spent periods in prison, where he was gruesomely tortured. 他坐过几次牢，在牢里受到非人的折磨。
• Ganoid fishes swarmed during the earlier geological periods. 硬鳞鱼在更早的地质时期数量巨大.