极期

The reality of the Maunder minimum has yet to be established, however, especially since the records that Chinese naked-eye observers of solar activity made at that time appear to contradict it.

不过，蒙德极小期的真实性还有待证实。尤其是因为中国用肉眼观察太阳活动的天文观察者那时对于太阳活动所作的记载似乎与它有矛盾。

Results:(1) After 24 h action of negative PTFE, the cell number in S phase increased.

结果： (1)负极性PTFE驻极体作用于3T3细胞24 h后， S期内的细胞数明显增加。

"In this study, antepartum dental radiography in pregnant women was associated with an increased risk for a LBW infant, especially a TLBW infant," the authors write."Since women may not always be aware of their pregnancy status, it may not be possible to eliminate all dental radiography during pregnancy, but if this goal could be achieved and if the identified association is causal, the prevalence of TLBW infants could be reduced by up to 5%.... The notion that very low-dose radiation exposures to nonreproductive organs in expectant mothers are safe needs to be investigated further."

研究人员表示，在这项研究中，怀孕期妇女分娩前牙科X光摄影与LBW新生儿的风险增加联结在一起，特别是TLBW，由於妇女不能总是注意到她们的妊娠状态，也不可能在怀孕期间取消所有的牙科X光摄影，但如杲这个目标能达成，而且被识别的联想是偶然的，则TWBL新生儿的盛行率能依5%减少；此外，在妊娠妇女中，对非生殖器官极低剂量辐射曝露，是须进一步研究的安全需求概念。

The main results as follows:1. Dry weight of heading stage showed a parabolic curve relationship with yield. And grain yield correlated well with dry matter accumulation after heading and total dry weight of muturing stage. The accumulation of dry matter from N-n to heading stage correlated with photosynthetic potential.

水稻抽穗期干重与产量呈抛物线关系，抽穗后干物质积累量和成熟期总干重与产量均呈极显著线性正相关。N-n期至抽穗期干物质积累量随着光合势的增加而增加，两者相关达到显著水平，而与净同化率关系不密切。

People in natural Pyrethrum ester chemical structure on the basis of a variety of pyrethroid insecticides, but the validity of these pesticide residues are short and easy solutions for optical characteristics.

人们在天然除虫菊酯化学结构研究的基础上合成出了多种拟除虫菊酯杀虫剂，但这些杀虫剂均有残效期短和极易光解的特点。

Aesthetic ideas during the booming time of Italian Renaissance are represented by Leonardo da Vinci, Michelangelo Bounaroti and Raffaello Sanzo, who have shown great personalities in their artistic creation, thoughtful inspiration and wisdom triggered by their idea clashes, and whose creative achievements and aesthetics have laid the foundation for the modern artistic forms in Europe.

16世纪是意大利文艺复兴的盛期，这一时期的标志性艺术是绘画、雕塑和建筑，而艺术方面的美学思想的代表则是达·芬奇、米开朗基罗和拉斐尔。他们的美学思想都是从实践经验中总结出来的，具有很强的实证性和科学性。这三个巨人都是个人主义，他们各自在艺术创造上都表现出极强

There may be periods of normal behavior, but the mood dysregulation of bipolar illnesses is beyond the normal range of mood variation and causes serious life problems.

有可期的正常行为，但是情绪失调双极毛病是超出正常范围的情绪变化，并导致严重的生活问题。

During the relatively refractory period a neuron may be stimulated to fire, given increased stimulation. Neurons are capable of representing differences in input only through rate of response. Myelinted fibers conduct the wave of depolarization more rapidly than demyelinated fibers, primarily due to saltatory conduction.

在相对反抝期一条神经可能会被刺激过度，特定增加的刺激，神经单位是足以表现在输入的差异性，仅透过反应的比率，有髓的纤维引导去极波比脱髓鞘纤维更加快速，主要是由於跳跃性的传导。

In Chapter 4,the site-symmetry projector is constructed to produce thecomplete symmetry-adapted orbitals.Based on this,we deduce the energy equationcontaining all the interactions of〓orbitals,the H〓ckel model secular equation,andthe energy expression containing the second neighbor hopping.Also we discuss theeffect of the second neighbor hopping on the electronic structures and properties offullerenes.

第四章阐述与位置对称性有关的投影算子的构造及其在处理富勒烯的π电子结构中的应用，导出了π轨道的所有相互作用都包括在内的能量本征方程，一极近似下的久期方程，和二级近似（考虑π轨道的次邻接相互作用）下的能量表达式，并且一般性地讨论了次邻接相互作用在富勒烯的电子结构和性质中的作用。

During the glacial maximum, Mu Us Desert extended southeasterly to the loess plateau, but when the last climatic optimum occured, the desert retreated more than 5 latitudes northwards.

末次冰期极盛时，毛乌素沙漠的分布范围扩大，向东南一直延伸到黄土高原地区，全新世气候适宜期时，沙漠缩小，相对于末次盛冰期而言，在空间上向北退缩了5个纬度左右。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。