查询词典 length

Some years later, in a demonstration lecture at the Royal Institution, he produced an arc nearly three inches in length.

一些年后的今天，在示范讲座，在皇家学会，他制作了一个弧形近3英寸的长度。

The ratio of the change in the angle of a tangent that moves over a given arc to the length of the arc.

在这个国家的某些地区一种不愿容忍变革的态度似乎是改变不了的。

In mathematics, the integral of a function of several variables defined on a line or curve that has been expressed in terms of arc length .

数学中，定义在直线或曲线上的多元函数的积分。

If the length of the arc ADB is equal

若弧ADB 的长

The arc length is one of the most sensitive parameters that influence welding quality at all-position TIG welding.

在厚壁管窄间隙全位置TIG焊中，弧长是影响焊接质量最敏感的焊接参数之一。

This paper puts forward some practical formulae of measuring the area and arc length of arch form,and analyses the relative error of these formulae.

文章提出弓形面积和弧长计量的实用公式，并分析了该公式的相对误差。

Welding voltage power grid voltage fluctuations and changes in arc length self-adjusting ability.

焊接电压在电网电压波动及电弧长度变化时自调节能力强。

Spatter can be avoided with new arc length control design and suitable process parameters.

同时，好的弧长控制效果与合理设计工艺参数相结合可以有效的防止双脉冲焊中飞溅的发生。

That moves over a given arc to the length of the arc.

角度'。''变化与弧线长度之间的比率

Where l is the arc length opposite to αas a central angle ,r is the radius of the

如果半径为r的圆心角α所对弧的长为l，那么，角α的弧度数的绝对值是｜α｜＝l/r。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷