在...的控制下

In building a well-to-do society, the bringing-up ratio is overestimated or underestimated by the analysis on the ratio due to the different population policy under the condition of increasing aging population, the under-construction of social guarantee system, and the arduous task of population control.

基于我国人口老龄化逐渐加重，社会全民保障体系尚未建立与完善，人口控制任务依然艰巨的情形下，通过指出在抚养比的计算中存在的问题，以及比较分析不同人口政策的抚养比，借以阐述我国的抚养比存在失真，即存在"高估"或"低估"现象。

Our design takes into consideration random air turbulence, carrier burble and deck motions ,and designs the automatic landing control system for longitudinal control laws. The results show that the control designed by the LQG/LTR is robust, and the simulation result are ideal.

在考虑大气干扰、舰尾流和甲板运动的条件下，以某飞机为例，对其纵向自动着舰控制系统进行分析、设计与仿真，结果表明采用LQG/LTR方法设计的控制器具有较好的鲁棒性，并且具有良好的效果。

Genetic variation of coleoptile length, Incomplete leaf length and seedling height of 7d after germinated and their correlation with PH were studied by using 95 varieties of japonica rice in 6 different ecotypes under natural and controlled(30 ℃ 12 h light) conditions.

在自然及30℃、12h光照的控制条件下，对6个生态类型的95个粳稻品种芽鞘长度、不完全叶长度及7d后苗高3个幼苗性状的遗传变异及其与株高的相关性进行了研究。

Under certain conditions, the activation and migration of soil Cd were accelerated by the interaction of Pb and Cd and increased Cd uptake by wetland rice. The organic-bound Cd in rizhosphere decreased by 90%. These phenomena illustrates that the interaction is very important for the transformation of soil Cd fractions. Meanwhile, the interaction distinctly affected the composition of roots secretion and their coordination abilities with heavy metals, causing clear variation to Cd amount in root cortex and middle columniation.

在一定的实验条件下，Pb和Cd的交互作用促进了Cd的活化与迁移，增加了水稻地上部分对Cd的吸收，使根际土有机结合态Cd下降了90%左右，表明交互作用对Cd形态的转化是一个重要的控制因素；同时交互作用对根系分泌物的组成及其与重金属的配位能力有着明显的影响，使Pb、Cd在根系皮层和中柱中Cd的含量有明显变化。

This model is based on an ordinary continuous function of demanding rate.

针对库存管理和控制中存在的实际问题，在最大程度降低库存运营成本的前提下，综合考虑了货物损坏率以及缺货率引起的损失等多种影响，提出了一个需求率为一般连续函数的库存模型，并进一步建立了该模型的两阶段优化方法。

For some being serviced buffer, the continuous limit processing time is selected such that the continuous state slides onto a 1-dimension manifold spanned by two succession vertexes of the periodic orbit.

当Server服务于一个Buffer时，以此状态下在连续周期轨道上对应的2个顶点张成的一维线形子流型为滑动目标，仅通过系统许可的对极限连续处理时间的控制，使系统镇定于周期轨道。

In the current short-term hot money speculation rapid warming of the environment, fluctuations in stock prices continued abnormalities are being more and more control.

在目前的短期游资的投机活动迅速升温的环境下，股票价格波动的持续异常的情况，越来越多地控制。

New strategies for breeding seedless plants have been proposed by using these genes. These include expression of some cytotoxin genes or genes for production of hormones in plants under the control of seed_coat_specific promoter or ovary_specific promoter and "terminator technology" etc. It's clear that these transgenic methods will be introduced into a wider range of fruit and vegetables in the future.

应用这些目的基因，已建立了转基因生产无籽果实的新策略，如在种皮或子房特异性启动子控制下的生长素基因或细胞毒素基因的表达及"终止子"技术的运用等，这将大规模地促进蔬菜和水果生产，提高果蔬产品的市场价值。

Based on a second order damped oscillation differential equation for a missile and upon a detailed analysis of the balance sideslip angle under commands from several different ways of control, the paper proposes some significant empirical criteria for the static stability design of anti tank missiles.

根据弹体摆动运动的简化数学模型，通过对几种控制方式不同的反坦克导弹在指令作用下的平衡侧滑角等数据进行分析研究，得出了反坦克导弹静稳定度设计的一个经验性法

But as a result of the planned economy, the control method and the method influence, most part of the construction items are completed under the conditions of cost overrun or the deferment of a project.

但是我国由于长期受计划经济、控制手段和方法的影响，建设项目的大部分都是在成本超支、工期延长的情况下完成的。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。