查询词典 declining years

Thunbergii trees were established, and the sun survivorship curves were drawn with field data. The results showed that in the three plots, the height and basal diameter growth of regenerated young P. thunbergii trees had exponential, linear, and quadratic functional relations with age and the age structure was of spindle, discrete, and pyramid types, respectively. Most of the regenerated young trees were distrbuted at 0.3-1.2 m from their nearest standing trees, and the individuals of the young trees decreased near to or far from the nearest standing trees. Inplots Ⅰ and Ⅲ, the expected average life of regenerated young P. thunbergii trees had a decreasing trend with their increasing age, and the survival number of the population also decreased with increasing population age. The survivorship craves of regenerated young P. thunbergii trees in the two plots approximated to the type of Deevey Ⅱ, indicating that the young P. thunbergii populations in the plots were at stable development stage. The population structure of regenerated young P. thunbergii trees in plot Ⅱ was lesser integral, suggesting that the population was of declining types being related to human disturbance, slope and other environmental factors.

结果表明：(1) 3个样地中幼龄植株高生长、基径生长与年龄均分别呈指数函数、直线和二次函数关系；(2) 3个样地黑松幼龄植株年龄结构存在着明显差异，分别表现为纺锤形、残缺型和金字塔型；(3)幼龄植株主要集中分布在距最近立木0.3~1.2m，离立木越近或越远幼龄植株均逐渐减少；(4)对样地Ⅰ和样地Ⅲ黑松幼龄植株生命表和存活曲线的分析表明，随年龄的增加，黑松幼龄植株生命期望值基本上呈递减趋势，黑松幼龄植株种群存活数也随着年龄的增加而降低；样地Ⅰ和样地Ⅲ黑松幼龄植株种群存活曲线近似于Deevey Ⅱ型，表明2个样地黑松幼龄植株种群处于稳定发展阶段；(5)样地Ⅱ幼龄植株种群结构很不完整，表明该种群属于衰退型，与人为干扰及坡度等有关。

AOPA, by "multiple relevant convergence reaction", adjusts and affects systematically the endocrinal function of bone metabolism,improves the levels of estrogen and CT/PTH, reverses the declining tendency of pituitary-thyroid axis function and improves thyroid function so as to weaken osteocyte in the bony absorption, enhance osteoblast in osteogenesis and increase bone density.

AOAP可以通过&多位点相关集合效应&综合调控影响骨代谢的内分泌功能，提高雌激素、降钙素/甲状旁腺素水平，扭转垂体-甲状腺轴功能减退的趋势，改善甲状腺的功能，使破骨细胞的骨吸收减弱，成骨细胞的骨形成增强，增加骨密度。

Gas condensate fields are kinds of exceptive and complicated gas field; they assume key economic value because they both produce natural gas and condensate oil; the appearance of retrograde condensation because of the declining of the formation pressure during the development of those fields can make the development of this fields difficult , and because of it ,it is difficulty to improve the percent recovery of condensate oil.

凝析气田是一类极为特殊而复杂的气田；一方面由于能同时采出天然气和凝析油而具有重要的经济价值；另一方面，在开发过程中由于地层压力的降低会出现反凝析的现象，从而影响气藏的最终采收率。

The reasons of declining were mainly caused by supplying of chemical fertil i zer.

造成土壤营养元素偏斜的主要原因是施用化学肥料。

While they think prices will keep declining, potential purchasers—especially first-time buyers—will hold off, waiting for better deals, says Fionnuala Earley, an economist at Nationwide Building Society, also headquartered in Swindon.

全国建筑协会的总部也坐落在斯文顿。协会的一名经济学家Fionnuala Earley表示，潜在购房者认为房价会继续下滑，因此他们——尤其是那些第一次买房者——会推迟购房。

Independent Online - Small detritus-eating fish such as the flannelmouth make up 50-80 percent of total mass of fish in the Orinoco and Amazon basins but populations are declining due to overfishing, dams, deforestation and pollution.

独立在线小碎石-吃鱼等flannelmouth弥补50-80%鱼总质量奥里诺科和亚马逊盆地的人口正在减少，但由于过度捕捞、水坝、滥伐和污染。

A major concern today is the declining amount of forested land in the United States.

今天主要令人担忧的是林地数量的下降。

The last influential gaon died in 1038, but as the eastern center was declining, creative forces emerged in North Africa and especially in Muslim Spain.

最后有影响gaon死于1038年，但随着东部中心却在不断下降，创造性力量出现在北非，特别是在穆斯林西班牙。

The high concentration sevoflurane anesthesia can induce temporary cognitive decline and decrease IGF-Ⅰ expression in hippocampal CAI area of gerontal rats. It is demonstrated that the endogenous IGF-Ⅰ expression levels declining may play an important role in the development process of cognitive disturbances of senile rats.

高浓度七氟烷可在短时期内降低老年大鼠认知功能，可能与海马CAI区IGF-Ⅰ含量降低有关，内源性IGF-Ⅰ的表达减少可能在老年大鼠认知功能障碍的发生、发展过程中起到重要作用。

The rate of maize yield growth has being declining due to narrow genetic background and limited new heterotic patterns since 1970s.The role of tropical and subtropical maize germplasm in maize improvement was discussed in this paper.

但70年代以来我国玉米增产率呈下降趋势，玉米生产一直处于徘徊状态，其主要原因是国内种质资源匮乏，缺乏新的杂种优势群和杂种优势模式。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。