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- critical day length 临界日长度,临界昼长
- In the temperate zone in spring, temperatures fluctuate greatly from day to day, but day length increases steadily by a predictable amount. 春天的温带地区，气温每天都变化不定，但是日照长度却以一个可预知的数量稳步增加。
- The study provides the first global look at human sex ratios and could shed light on how temperature and day length influence human reproduction. 该研究首次在全球范围内观察了性别比率，也许能够解释温度和白天的长度是如何影响人类生殖情况的。
- Thermosensitive hybrids used as check,seven photosensitive rice hybrids were treated with artificial short day length(ASDL) and natural short day length(NSDL) in this study. 以感温组合为对照,对7个感光型杂交水稻组合进行了人工短日和自然短日处理,结果显示,南宁感光型杂交水稻组合在人工短日处理下,能缩短生育期30d左右;
- Original text ：The seasonal impact of day length on physiological responses is called photoperiodism, and the amount of experimental evidence for this phenomenon is considerable. 一定的词汇量恐怕是做好雅思阅读最基本的前提。总有学生问道，到底需要记下多少单词才可以考雅思。
- It was considered to be a successive change on the growing point, and the physiological effects of leaf growth sequence, day length and temperature ete, but not a manifestation of the original "physiological age of the meristem". 认为晚稻全株幼穗分化期的序列现象是生长点的继发性变化,是叶片生长序列以及昼长、温度等内外条件的生理效应,而非原发性的“分生组织生理年龄”的表现。
- Through seed sowing at different times, it was found that the fertility of W6154S and 87N-123S wag influenced by temperature and day length and the fertility of An-None S-1 mainly by temperature. 本文通过分期播种试验，发现W6154S育性受温度和光照的影响，安农S－1和87N123S的育性主要受温度的影响。
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- Thus many temperate-zone birds use the increasing day lengths in spring as a cue to begin the nesting cycle, because this is a point when adequate food resources will be assured. 所以许多生活在温带地区的鸟类把春天里逐渐变长的日照长度当作开始筑巢的提示，因为这是能保主充足的食物来源的时候。
- He'll rue the day he married her. 他将会因为和她结婚而抱恨终身。
- She is a very discerning art critic. 她是位眼光敏锐的艺术评论家。
- I think the chastisement to him is too critical. 我认为对他的惩罚太严厉了。
- He had been bumming around the park all day. 他在公园里荡了一整天了。
- The inquiry was critical of her work. 该项调查对她的工作提出了批评。
- God blessed the seventh day and sanctified it. 上帝祝福第七天并且使它成为神圣的日子。
- The reform is at its critical stage now. 改革正处于关键阶段。
- Computing the day length for programming insect behavior 昆虫行为研究中日长的计算
- Her performance won her much critical acclaim. 她的表演大获评论界赞颂。
- He slicks his hair down with oil every day. 他每天搽油把头梳得光溜溜的。
- We have come to the critical moment. 现在到了紧要关头。
