推力

In order to achieve a tradeoff between vectoring and unvectoring state, the proposed parameters of DTN are: Z=3~4, secondary injection flux is about 3%, cavity divergence angle is about 10°, cavity convergence angle is 20°~30°, injection angle of secondary is about 30° by counterflow injection.

为了实现DTN在推力矢量和非推力矢量下都有较好的内流综合性能，所建议的设计参数为：落压比为3~4，引射量为3%，凹腔扩张角为10°左右，收敛角在20°~30°，引射角度为30°逆流引射角(β=30°)。

It is shown that the friction force and bulkhead thrust are the main factors of shield thrust setting, while the friction between the cutterhead and soil is the main factors of cutterhead torque setting. Friction force between shield and soil would make front soil of shield upheave, and subsidence of surface soil is induced by ground loss when the friction force between the cutterhead and soil results in the surface settlement asymmetrical distribution.

通过计算发现，盾构施工中盾壳摩擦和正面推力是盾构推力设置的主要因素，而刀盘与土体摩擦是刀盘扭矩设置的主要因素，盾构前方土体隆起主要由盾壳摩擦引起，刀盘摩擦作用主要引起地表沉降的非对称分布，地表沉降主要由盾尾空隙产生。

This paper analyzes the different deflexion angle of thrust vectoring influence on aircraft take-off performance according to the result of numerical simulation.

通过数值仿真探讨了推力矢量的偏转大小对起飞性能的影响，对不同推力矢量偏转下飞机起飞性能的仿真计算结果进行了分析。

Compared with conventional mechanical thrust-vectoring, the fluidic thrust-vectoring has some superiority respect to stealth and weight characteristics.

与传统的机械推力矢量相比，采用射流推力矢量的飞机具有更优的隐身性和机动性。

In order to modify the disadvantage of the existing method for computing the landslide thrust that is not applicable for larger scope, 5 types of the slip surfaces have been given with the computation formula of landslide thrust respectively.

针对现有滑坡推力计算方法单一、适用性差的特点，将常见的各种类型滑坡按滑动面形式分为5种类型，根据滑坡稳定分析中各极限平衡法的适用条件，分别给出了这5种滑动面形式的滑坡推力计算表达式。

This paper presents the method of measuring thrust and vertical force of LIM based on maglev principle, the measuring of thrust and vertical force is accurate because of eliminating influence of the friction between wheel and rail.

本文提出一种基于混合磁悬浮原理的LIM推力和垂向力的测试方法，该方法采用非接触的方式可同时精确测出LIM的推力和垂向力。

Geostatics and hydrokinetics are used to develop equations relating the variation of the mass, centroid and moment of inertia because of the fuel combustion, and the change of the propeller thrust as the AUV cruises. A complete mathematical model is presented for an AUV with variable mass and velocity.

利用刚体分析动力学和理论流体力学的基本理论，研究水下自航器因燃料的消耗而引起的质量变化、质心位置和转动惯量的变化，导出描述其变化规律的方程；研究因推力变化而引起速度的改变，导出推力变化方程。

They are clay, mud shale, gravel, oil shale, mudstone, schist, basalt, limestone, gritstone, dolomite, breccia, granite, and quartzite. We give the feature curve and distribution feature equation of these rocked landslide.

本论文分别对不同滑体岩性，包括从软到硬的粘土、泥页岩、砾类土、油页岩、泥岩、片岩、玄武岩、灰岩、砂岩、白云岩、角砾岩、花岗岩、石英岩十三种具有代表性的岩土体的滑坡推力和剩余抗滑力进行了模拟分析，给出了它们的滑坡推力和剩余抗滑力分布特征曲线，分布特征方程。

Experiments show that pull of a single track shoe is between the theoretical value including andnot including track grouser effect.

在将上壤作为Burgers材料的情况下导出了链桨式驱动装置的推力表达式，单块桨板的推力为

This paper analyses the influence rule on tooth-layer permeance constant component and harmonic component with tooth-layer parameter and magnetometive, It offers basis to calculates the performance of the linear stepper motor with analytical method and optimized design for linear stepping motor.

最后，运用齿层比磁导函数化方法对直线步进电动机的最大电磁推力特性进行了定量研究，分析了永磁体参数、齿层参数对混合式直线步进电动机永磁体工作点的影响，分别计算了不同永磁体参数和齿层参数时的最大电磁推力特性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。