正方向

逆变器带上RC吸收回路及感性负载时，单边设置死区时正方向的负载电流使输出电压减小，负方向的负载电流使输出电压增加，从而影响了逆变器输出的共模电压。

When the inverter has RC snubbers and inductance load and adopts the asymmetric dead-time inserted mode , the forward load current makes the output voltage reduced and the negative-going load current makes the voltage raised . This may bring the change of the output CMV of the inverter .

因为它是可逆的，所以可以正方向运行。

And now since it 's reversible , we can run it forward or backward .

这是y的正方向，而这是x正方向。

This is the increasing y direction and this is the increasing x direction .

如果我把x反向取作正方向，那么这些符号将全部改变。

If I reverse the direction of increasing x then all my signs will change .

，轴正方向，，if，you，call，this，the，increasing，direction，of，x，动量是正方向的，而这个动量是负的，总动量永远不变。

X so this momentum is positive and this momentum is negative , the total momentum will never change .

单位矢量，始终指向，轴的正方向，轴方向的单位矢量，and，the，unit，vector，是这个。

Unit vectors are always pointing in the direction of the positive axis x in the x direction is this one .

如果沿着C走，我应该说沿着C的正方向走，就是我确定了C的定向。

If I walk along C , I should say in the positive direction , in the direction that I have chosen to orient C.

因此加速度必然，是在x正方向-，这里是正好，必然如此。

Therefore the acceleration since I call-that the " plus x direction " that was my plus sign must come out plus .

（几何）X轴和一条直线所形成的角（从X轴的正方向按逆时针方向测量）。

( geometry ) the angle formed by the x-axis and a given line ( measured counterclockwise from the positive half of the x-axis ) .

根据人体视线和脚尖的同向性及两腿的自然分开特征，对点云进行方位调整，使人体朝向z轴正方向。

Based on the directions of eyesight and the natural separating of two legs , the human 's orientation is adjusted to facing z positive direction .

所以速度的符号，和平均加速度的符号，这二者都取决于，这里x正方向，是如何定义的，和0点的选取没有关系。

So the signs in the velocity and the signs in average acceleration depend crucially on how I have defined my increasing value of x not where I choose my zero points .

为了方便，正方向设为向下，方向如何取并不打紧，还有重力mg的-，作用。

And just for my convenience I call this now the plus direction just for my convenience it doesn 't really matter So now we have here mg that is gravity acting upon you .

依照牛顿第二定律：，处在正方向。，F，of，s，is，in，plus，direction。。。，减反方向的mg，等于，故秤的，读数是。

And so we get Newton 's Second Law : Fs ma minus mg & it 's in this direction equals m times a and so the bathroom scale m indicates m times a plus g.

这时有正方向的，减去m1gsinα和Ff最大。

T Now I have T , which is in the positive direction minus m1 g sine alpha minus F f max.

原生质体再生处理后，硫霉素产量变异向正方向移动，筛选到1株PR－117，相对效价提高60%。

After protoplast regeneration , the curve of normal distribution of relative titer had a positive mutation and mutant PR 117 was obtained , whose relative titer was 60 percent higher than original strains .

对于位于平行于组织-空气界面下方平面内的任意走向的直线神经纤维，修正的激活函数由感应电场x分量和y分量在x方向的导数和直线神经纤维与x轴正方向的夹角决定。

The modified activating function of the arbitrarily-running nerve in the plane parallel to the boundary of air-tissue is determined by the spatial derivatives of the induced Ex 、 Ey along the x axis and the angle between nerve and x axis .

还有q2一撇，在这个例子中，我们把箭头朝正方向。

And we 're going to have q2 prime , and we 're going to draw the arrows in the positive direction in these cases .

试验中发现新13号合金预生膜试样在NP氧化预处理剂中不同于一般合金材料（如18-8不锈钢，Incoloy800合金），在低酸度区，腐蚀电位随酸度升高向正方向移动的特性。

The behaviour of alloy 13 prefilmed specimen in NP preoxidation solution is different from 18-8 S. S. and Incoloy 800 . In the low acidity , the corrosion potential moves toward positive direction as the acidity becomes high .

高压线路保护中，当系统发生故障时，由于电压的降落，CVT将产生暂态效应，可能引起正方向距离保护的暂态超越。

In the protection of HVPS ( High Voltage Power Supply ), the transient effect of CVT time by the fall of voltage in fault is likely to lead to the transient overreach of the protection .

电化学测试结果表明，渗锌涂层涂覆一层SiO2薄膜后电极电位大幅度向正方向移动，是Zn-SiO2复合涂层提高抗腐蚀性能的主要原因。

Electrochemical results show that the potential of sherardizing coating shifts markedly to positive with SiO 2 deposit , which is the main reason for increasing corrosion resistance of Zn-SiO 2 composite coating .

结果表明：石英玻璃的脱羟是二级对峙反应，正方向是放热反应，活化能为153kJ·mol-1，逆反应活化能为306kJ·mol-1；

The results show that the process of dehydroxylation belong to a second order opposite reaction , the positive direction is an exothermic reaction with an activation energy of 153 kJ · mol - 1 , and the activation energy of negative direction is 306 kJ · mol - 1 ;

这个方向，是y的正方向。

And this is the direction , positive direction , of y.

所以当曲面正方向如此时，结果是正的。

So , in the direction that we are counting positively .

我把这个选为正方向。

I will now choose this the plus direction .

我需要选择一个正方向。

And I need to choose my orientation .

四阶非线性效应使孤子中心向正方向平移。

Forth-order nonlinear effect has the influence on a positive shift of the soliton centre .

美这种存在，与人类意念正方向指向有关。

Beauty is in relation to the pointing of the positive direction of human 's thought .

当然这是因为没给出抛物面的的正方向。

Of course , I didn 't tell you which way I am orienting my paraboloid .

对于这个定理，我选择的方向是，指向外的正方向。

The orientation that will work for this theorem is choosing the normal vector to point outwards .

因而箭头是从高电位指向低电位，并且与假定的电流正方向一致。

Thus the arrow points from high to low potential and in the direction of assumed current flow .