虽然YRBSS的结果指出大量青春期少年有风险，但是确定特定的人群仍然是极困难的。
Although the YRBSS results indicate that large Numbers of youth are at risk, it is extremely difficult to identify specific individuals.
如此直爽的言论与这个极注重实效的城市的选民们产生共鸣，而且这的确可能成为2010年中期选举中的令人信服的信息。
That straight talk resonated with voters in a highly pragmatic city, and it could indeed be a convincing message in the 2010 mid-term elections.
拔节至抽穗期干旱胁迫极显著地降低冬小麦的氮素营养效率。
The drought stress from jointing to heading stage decreased nitrogen nutrition efficiency of winter wheat significantly.
具有极佳的极压性、提高机床和零件的防锈周期，加工的工件防锈期在20天以上，适用于高温、高湿地区使用。
Excellent extreme pressure, improve machine and parts of rust cycle, antirust period in more than 20 days, suitable for high temperature, humidity region.
孕穗期小花数均与叶面积、叶片重、叶鞘重和总干物重呈显著或极显著正相关，而与茎高的相关不显著。
The floret number was significantly correlated with the weights of leaf, leaf sheath, whole main stem or tiller, and leaf area, but not with the length of stem.
经典理论形成了低谷和顶峰两极时期的财政对策，但忽视转型期的调控政策。
The classical theory has formed financial countermeasures at the period of economic low or top, but neglected policies at the economic turning points.
与常规水稻栽培方式相比，鸭稻共作方式下水稻株高、叶面积指数、生物量有减小的趋势，而且在有效分蘖期和幼穗分化期存在着显著或极显著差异。
Compared with the CRMS, the height, leaf area index and biomass of rice in IRDFS decreased and there was a significant difference during the tillering and heading stage.
目的探讨卵细胞第一极体形态与原核期受精卵形态、卵裂期胚胎质量的关系。
Objective To investigate the relationship between the first polar body morphology of oocyte and the zygote morphology in pronucleus stage, embryo quality in cleavage stage.
方法分析247例期前收缩后心肌复极的变化情况。
Methods We analyzed 247 cases of unusual changes of myocardium repolarization after ventricular premature beats.
方法分析250例期前收缩后心肌复极的变化情况。
Methods 250 cases of unusual changes of myocardium repolarization after ventricular premature beats were analyzed.
花椒施硼肥能极显著地增加座果率，在花椒萌发期和开花末期分别以0.2%硼溶液根外喷施，能收到增加花椒座果率和提高花椒产量的良好效果。
The yield and the rate of fruit-bearing of it are obviously increased by spraying 0.2 percent boric fertilizer in the germinative and flowering phase.
对12个水稻品种生理成熟期的产量和叶型特征进行典型相关分析，结果表明：产量与叶型特征各性状的典型相关系数均达显著或极显著水平。
This paper presents the result of canonical correlation analysis between leaf characters and yield of 12 paddy rice cultivars measured during the physiological maturing stage.
全生育期、有效穗、穗实粒数受特殊配合力效应的影响达极显著水平。
There were extreme significant levels of SCA with growth duration, effective panicle and filled grain per panicle.
所以，我们今天即将度过的是一个静态平衡期（aperiodofstasis），而不是一个两极分化意识有所提高或者可以界定的两方真正出现激烈冲突的时期。
So what we're going through today is a period of stasis, rather than a period with any heightened sense of polarisation or any real sharp clash between definable sides.
在热带地区，一整年都是流感好发季节，倘若赤道附近的热带性气团向两极扩张，一些季节错乱的地区便可能发觉流感疫期已稍稍延长。
Influenza is a year-round event in the tropics. If the tropical airmass around the Earth's equator expands, as new areas lose their seasons they may also begin to see influenza year-round.
摘要目的评价二极管激光在种植二期手术中的临床效果。
Abstract : Objective To evaluate the clinical effects of diode laser in the secondarystage implant surgery.
拔节至抽穗期干旱胁迫极显著地降低冬小麦的氮素营养效率。
The drought stress from jointing to heading stage decreased nitrogen nutrition efficiency of w…
拔节至抽穗期干旱胁迫极显著地降低冬小麦的氮素营养效率。
The drought stress from jointing to heading stage decreased nitrogen nutrition efficiency of w…
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