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The aerodynamics characteristic of the innovative control surfaces which are implemented on the flying wing aircraft with large aspect ratio were introduced, and elevon and split rudder were involved. And the control effects on three axis were analyzed basing on computetional fluid dynamics method. The concept of control volume was imported to introduce parameters-based method of control surfaces design. The control effect requirements of the control surfaces were also evaluated. The original design of certain aircraft's control surfaces was modified.

介绍了在该新布局飞机上采用的升降副翼和开裂式方向舵等新型操纵面的气动特点,并在计算空气动力学的基础上分析了其三轴控制效率,引进舵容量的概念提出了操纵面的参数化设计方法,基于飞机的可控性对各新型操纵面的操纵效率需求进行了评估,最终对某型飞机的操纵面初步设计进行了修正。

The distribution of the equipotential line and power line of the electric current field brought by the coaxial-columniform electrode in the water was described by the experiment, and the result of the experiment is squared with the theory.

通过实验获得同轴圆柱面形电极在水中产生的电流场的等位线,并根据等位线与电力线垂直的原则绘出其电力线分布。

Points out that the propagational derection and vibration surface of ordinary and extraordinary ray in crystal can be determined by the characters of wave surface in crystal and Huygens,Construction.

本文研究单色自然光入射到单轴晶体后产生双折射现象,所得的O光和e光在晶体内的传播方向和振动面,可利用晶体中波面的特点和惠更斯作图法来确定,使读者对这一问题有更进一步的认识和理解。

On the respect of partially-premixed combustion research, we systematically studied the structure of partially-premixed flames in counter-flow and coaxial jet flow by using direct calculation and flamelet modeling.

在部分预混燃烧研究方面,本文结合火焰面模型和直接求解的方法,在对撞射流流场和同轴伴流流场中系统研究了部分预混火焰的结构特征,提出以预混燃料的当量比和当量混合标量耗散率作为描述部分预混火焰结构变化的参量的观点,并比较了它和非预混火焰的异同。

At first,both principle of surface flashover and axial insulation structure of accelerating tubes were analyzed.

首先分析了沿面闪络的机理和该加速管轴向绝缘体结构。

The paper focus on the detailed structure of the optical system in helmet mounted electro optical sight scanning system,and makes analysis of the principle error caused by ten side prism reflector non direction fit axis rotation in measuring its head position,it further derives two formulas for base line correction and goniometry correction.

就某型光电头盔瞄准具扫描部件光学系统具体结构,分析研究了其头位测量中十棱镜反射面非共面定轴转动所致原理误差,导出了基线校正、测角校正两种校正公式。

By modulating the input powers of the two heating parts, a homogeneous temperature distribution over ?

3双轴旋转基片的均匀加热,加热器的面内温度差小于±5℃。

The measurement is simulated by ""regular icosahedron "" method, utilizing the direct current moment electric motor and the photoelectrical axis angle encoder, the rotation of the shot carrier and the CCD camera is completed, and can orientation the rotating angle, so that the system can make the CCD camera to measure the square diagraph in 16 independent projections.

该系统的研制是利用"正二十面体"方法进行模拟,直流力矩电动机和光电轴角编码器配合使用,完成载物台和CCD相机的旋转运动和角度定位,使CCD相机能够实现对十六个独立方向上的投影测量。

The morphological and anatomical characteristics of"Zha′ai 76"Comparing with the plants of normal M.baccata and ordinary hybrid,"Zha′ai76"and other plants with Dw major gene showed that:the length of springgrowth or main shoot is shorter by 59.6-66.2%;the ratio of length:diame-ter of new shoot smaller by 33.2-58.4%;the length of internee shorter by14.0-42.7%:the node number of spring growth lesser by 40.7%;the cauli-cle height under the cotyledons of hybrid seedlings shorter by 65.0%;the in-dex of leaf stalk(stipe length:stipe thiek ness)on the spring growth smaller by34.5-50.2%;the length of leaf stalk shorter by 25.2-45.7%;the boundarybelt between spring and autumn growth has knob-like nodes;the margin of leafappears wave-like;the sepals with spinous proeessuses are massive and small;the eonstriction at calyx is not obvious;the trace of abscisic sepals is big;the ca-lyx end of fruit is plan or convex;the shape of shoot tip(of"Zha′ai 76")iswider and shorter;and in 1.0mm part from the top of shoot tip,there are manyspecialized cells which are larger in volarae,but with lesser inner material andwith smaller or no nucleus.

"扎矮76"的形态解剖特征与普通山定子和杂交后代中普通型植株对比,"扎矮76"和其它携带Dw主基因植株的:春梢短59.6-66.2%,梢长与梢粗比值小33.2-58.4%,节间短14.0-42.7%,春梢节数少40.7%,杂种苗下胚轴短65.0%,春梢叶柄形指数小34.5-50.2%,叶柄短25.2-45.7%,春秋梢交界处有瘤状突起,叶缘波状,萼片肥厚有刺状突起,萼部缢痕不明显,脱萼后萼痕较大、萼洼平或高于果面;新梢生长点宽而短,在距顶端1.0gmm处有较多体积较大、内容物较少、细胞核小或无的待化细胞。

Collins formula, which describes the diffraction of light wave passed through a near-axis optical system, and its inverse calculation expression are presented in this paper. The object plane and charge coupled device detector plane which are used in the study of digital holographic detect, are treated as the input and output planes of an ABCD system.

给出描述光波通过傍轴光学系统衍射的柯林斯公式及其逆运算表达式,然后将数字全息检测研究中的物平面及CCD探测平面视为ABCD系统的输入平面及输出平面,提出通过柯林斯公式的逆运算进行波面重构的一种计算方法。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

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However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。