可控制的

Aircraft is a combined research product of every high technology. It needs a very powerful engine to drive it to fly at high speed, a highly reliable fuselage to stand the action of variable stress, an advanced navigation control system to control the flying direction and posture of the flight, and a comfortable cabin environment.

航空飞行器是各高新技术研究成果的集成，要提供很强动力并保持快速飞行速度的发动机、能承受反复交变应力的可靠性很强的飞行壳体、可控制飞行方向和位姿的先进导航系统和操纵系统、舒适的人机环境空间等。

The physical and mathematical models of underground gasification are erected; a temperature field in the district of gasification is set up; the instance analysis on the computer analogue simulation machine has been carried out; systematic analysis and research on the variable rules of temperature and different components has also been taken and some important resultants about the best position for drilling and the relationship between adjustment and control and gasification stability have gained, which opens up a new field for the sight research of the control of the stability of underground gas of coal.

建立了钻孔调控气化的物理模型、数学模型及气化盘区温度场，并进行了计算机模拟仿真及实例分析，对温度及各组分的变化规律进行了系统的分析研究，得出了最佳调控钻孔位置及调控与气化稳定的关系等重要结论，为煤炭地下气化稳定控制的可视化研究开辟了新的领域。

Based on force diagram an analytical expression between some factors and splaying angle of the bar is brought forward, pointing out that splaying angle of the bar should be 2 3 degrees, and slitting angle should be 30 degrees approximately, outboard slant angle on the slitting groove should be 45 50 degrees and bite angle should be 7 8 degrees.

为稳定小规格带肋钢筋的三线切分轧制，对涉及棒材张开角的切分孔孔型诸角度进行了分析，通过对轧件受力状态的讨论，提出了诸因素与棒材张开角之间的解析式，指出满足三线切分稳定轧制时的棒材张开角应为 2°～ 3°，相应的孔型切分角为 30°左右，孔型外侧壁倾角应在 4 5°～ 5 0°之间，咬入角可控制在 7°～ 8°之间等。

The impact of the analog tuner section is typically small provided a good AGC concept and sufficient C/N headroom are available.

模拟调谐电路部分的影响是非常的小，如果一个好的自动增益控制概念和足够的 C/N 余量是可利用的。

The sluice-gate control system is a SCADA system (data capture 、 data surveillance and data control), the functions of which are to capture, monitor and control the central data , capture data digitizedly and distributively , transmit data gradedly , display in multiple modes , and so on . The system makes the process of opening and closure of the sluice-gate simple, convenient, flexible and stable . It can discharge reasonably by using the fewest mechanical and electronic devices , and attain the best effect of the intellectual SCADA system in the loading capability of the sluice-gate .

闸门监控系统是一个可进行中央数据采集、监视和控制的，集数字化、分布式数据采集，分层数据传输，多种显示方式等功能于一身的SCADA系统，使得闸门启闭过程更加简捷、方便、灵活、可靠，功能更强大，从而达到使用最小的机电设备与能耗，获得最合理的排放，并充分发挥计算机智能SCADA系统对闸门运载能力的最佳效果。

And this article divides the farmers into three grades in the point of qualitative and quantitative views, and according the principle of econometrician, using the way of Oaxaca analysis, choosing and analyzing the controllable variables in the maize process, in order to find the main ingredients which forming the difference about the behaviors of maize producers based on the different maize grossing zones.

本文通过对南北三省农户玉米生产的投入和产出情况进行实地调查，首先比较分析了不同收入等级农户、不同地区农户和不同土地等级玉米生产的成本和收益情况；然后从定性和定量的角度将农户分为三个等级，再从农户等级和不同玉米种植区的角度出发，根据计量经济原理，运用OAXACA分解分析方法，选择农户玉米生产中的可控制变量对其进行分析，以找出形成农户玉米生产行为差异的主要影响因素。

Therefore, the identification of grinding burn and wheel wear is of interest to the people in the field of machine manufacturing.

因此，寻求实用、可辨识的信号源，并应用工况监视与故障诊断的方法，把烧伤的零件在磨削过程中识别出来、并及时预报磨削过程中砂轮的磨损状况，是机械制造领域质量控制的重要课题之一，具有重要的工程意义。

By using the Lie group theory of differential geometry and Pontryagin's maximum principle, it is pointed out that the mobile CRS robot on surface is controllable, and the necessary conditions and the structure equations of extremal trajectories are proposed.

为了解决曲面上移动CRS机器人的路径规划问题，在曲面上建立了机器人的动态模型，利用微分几何的李群理论和庞特里亚金最大值原理，证明了曲面上CRS机器人是可控的，并给出了机器人的最小时间控制的必要条件和结构方程。

According to the robust control H2 optimal performance specification, the practically desired diagonal elements of the system transfer matrix are suggested, and in view of the coupling action existing between the two closed loops, dynamic detuning factors are introduced to design the optimal double-loop controllers, and their executable PI/PID forms are derived using a mathematical rational approximation approach.

根据鲁棒控制H2最优性能指标，提出实际期望实现的系统传函矩阵中的对角元。考虑到两个闭环之间的耦合作用，引入动态解调因子设计最优双回路控制器，采用数学有理逼近的方法得到其实际可执行的PI/PID形式。

In contrast, Professor John Merryman, Sweitzer Professor of Law and also Professor of Art at StanfordUniversity, putting aside the discrepancy presented by Rudenstine, argues that since the Ottomans had controlled Athens since 1460, their claims to the artifacts were legal and recognizable.

相反，约翰-梅里曼教授，斯韦泽的法学教授，他还是斯坦福大学的艺术教授，撇开由鲁登斯坦提出的译文差异，认为，由于奥斯曼帝国自1460年起就控制了雅典，他们对文物拥有权的声明是合法的，也是可辨认的。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。