直角器

This will, move the neutral point of the servos to the actual perpendicular position.

这个目的，是移动伺服器的中立点到实际的直角垂直位置。

Above all by hand in dc network to the coupling between concerns and be changed stream implement changeover equation, derivation gives rectangular coordinates to fasten matrix of the Jacobi that makes dc system, Hessian, the means that offers section to seek solution in the light of the change that makes dc system control fashion next begs solution voltage to stabilize the usable transmission ability below tie condition.

首先由交直流网络间的耦合关系和换流器转换方程，推导出直角坐标系交直流系统的Jacobi、Hessian矩阵，然后针对交直流系统控制方式的改变提出分段求解的方法求解电压稳定约束条件下的可用传输能力。

Xi Brushes must be installed square to the commutator/slip ring.

炭刷必须和换向器/滑环成直角。

A new bridge deflection measurement method was proposed, in which the geometric information of co-operant was acquired by using the surveying robot. The angle measurement precision and the distance measurement precision of surveying robot were analysed from two perspectives of systematic error and random error. The measurement error analysis was done by considering the effect of the vertical angle and stadia. Measurement precision of the method was analysed in the least square principle.

提出了一种以测量机器人为采集器，通过获取合作目标的几何信息进行桥梁挠度测量的新方法，从测量系统误差、偶然误差两个方面分析了测量机器人的测角及测距误差，并探讨了竖直角、视距付挠度测量误差的影响，同时依据最小二乘原理分析了该方法的测量精度。

The vibration test is marked in different velocities to probe the effective way of the beam damping by changing the fixed type of the beam on two ends,setting up the curve beam with right angle to sustain the beam,and installing the rubber damper,so as to reduce the amplitude of the beam .

通过改变横梁两端固定方式，增设直角弯梁后撑横梁，加装横梁橡胶减振器等方法，在不同速度工况下进行振动测试，以减小横梁振动的幅值。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。