查询词典 zero method

The definition of generator angle is proposed in this paper. A new method to deduce generator angle by using rotor rotation signal is illustrated, which compares the phase difference between GPS timing pulse and RRS. Using only mechanical signal, the technique unfreezes limitation of zero-cross of generator terminal voltage during transient process. Automatic correction of initial generator angle is also proposed .

本文介绍了同步发电机绝对转子角的定义，提出了一种测量绝对转子角，进而获得高精度的相对转子角的方法；此方法不使用机端电压过零整形脉冲，而是将机组键相脉冲与GPS 定时脉冲比相，并能够自动整定初始位置角，因此，测量结果不受发电机运行状态的影响，能够在各种运行方式和扰动情况下获取高精度的绝对转子角。

The conception of relative oil gauge zero is introduced and the calculation model and measure method is also analyzed.

引入相对油膜厚度零点的概念，并给出相对油膜厚度模型的计算方法和测量方法。

To set the coefficient determinant for zero to solve the characteristic equation of one-layered plate, and to calculate the dispersion equation of any layered plates with recursive matrix method.

层状板当上下表面为自由边界面时板中将会产生板波，文中通过求解行列式和采用传递矩阵法分别得到了单层板和任意层板的特征方程，研究了单层板和双层板中板波的频散特性和板中位移和应力的分布，讨论了板波的动力响应，对测点的布置有一定的指导意义。

To choose which method to use simple add a value above zero to one of the three sliders.

要选择哪种方法，就在它的滑动条上给一个大于0的值就可以了。

A method of computing and visualizing the combustion process in a DI gasoline engine is presented, taking a complex shape DI combustion chamber as a case, basing on a three-dimensional staggered grid, using a zero-dimensional combustion model with sequential multi-point combustion in this paper.

本文研究了缸内直喷式汽油机燃烧过程的计算机模拟计算与燃烧过程可视化方法。论文以一个复杂形状的直喷式燃烧室为例，基于三维交错网格，应用零维燃烧模型，按照油束形状以多点连续燃烧的形式计算研究了该方法。

According to the characteristic of wavelet packet transformation and fuzzy neural network, this paper proposed a new method of discriminating fault line for single-phase ground in distribution system based on the wavelet packet transformation and fuzzy neural network. The wavelet packet fuzzy neural network trained by the post fault zero sequence current is used to discriminate the fault line.

根据小波包变换和模糊神经网络的特点，提出了基於小波包变换模糊神经网络的一种小电流接地系统单相接地故障选线方法，即利用经过接地后零序电流训练的小波模糊神经网络来判别接地线路。

The preparation method determines the optimized process of the lactide reaction based on oil return-service, prepares the low/zero trans fatty acid base oil, so as to reduce the content of trans fatty acid in oil products, lay foundation for the development of the base oil of margarine and shortening to the nutrition and health direction, and help the development of the special oil industry of our country.

本发明在油脂复配基础上，确立交酯反应的优化工艺，制备低/零反式脂肪酸基料油，以降低油脂产品中的反式脂肪酸含量，为人造奶油、起酥油的基料油向营养健康方向发展奠定基础，有利于我国专用油脂产业的发展。

In the preparation method, primary soybean oil and deep hydrogenation soybean oil, or primary rapeseed oil and deep hydrogenation rapeseed oil are adopted as raw materials; sodium methoxide is selected as a catalyst; the consumption of the catalyst is 0.1 percent to 0.5 percent; the reaction temperature is 70 DEG C to 110 DEG C; therefore, the primary soybean oil and the deep hydrogenation soybean oil, or the primary rapeseed oil and the deep hydrogenation rapeseed oil have randomized lactide reaction for 10 min to 90 min, so as to change the composition of mixed oil triglyceride and obtain the low/zero trans fatty acid base oil with different melting points and the characteristics of solid fat.

本发明以一级大豆油和极度氢化大豆油，或一级菜籽油和极度氢化菜籽油为原料，选择甲醇钠为催化剂，催化剂用量0.1％～0.5％，反应温度70～110℃，使一级大豆油和极度氢化大豆油，或一级菜籽油和极度氢化菜籽油之间进行随机交酯化反应，反应时间10～90min，从而改变混合油甘三酯组成，得到具有不同熔点和固体脂肪特征的低/零反式脂肪酸基料油。

This paper gives the zero-pass rate curves of the vibration signals of the sounds from a helicopter tank , large vehicle and human walk analyzed by using the method, with the help of which ones can extracte the features of the target signals.

文中给出了应用该方法分析的直升机声音、坦克声音、大型卡车声音、人员行走的震动信号的过零率曲线。利用该方法可以提取目标信号的特征。

In the code provided below, you will see that I used a binary tree traversal method and the tag property of the controls to change the index of every ComboBox to zero.

在下面提供的代码，你将看到我用二叉树遍历方法和控件的标记属性来更改每个组合框指数为零。

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）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。