查询词典 ball-shaped

The error source of CMM is complex, and the current main research is its geometric error. In the paper, 21 items of geometric error are measured accurately, simply and fast with the 2-D laser interferometer and four quadrants photo detector. The measurement gets rid of measuring so many lines and several diagonal lines in linear displacement method, and also solves the question that error measure of large-scale CMM can not be measured with 1-D ball array and ball plate conveniently.

坐标测量机的误差源纷繁复杂，当前主要研究的是其几何误差，课题中研究了一种采用二维激光干涉仪和四象限光电探测器相结合的测量方法，对三坐标测量机的21项几何误差进行了准确、简便、快速的测量，摆脱了线位移法测量直线过多且包含多条对角线测量的弊端，同时也解决了一维球列和球板不方便检测的大型测量机的误差检测问题。

According to the principle of the diameter of a circle corresponding to the right angle and the principle of short side for little angle in right triangle, projecting the initially-chosen point to the hyper-planes of the linear equation group in which every linear equation can be regarded as a hyper-plane and the projection points can be obtained. The initially-chosen point, and one arbitrary projection point, and the solution point are all on the surface of the relative hyper-geometry ball, therein-to, there is a projection point which is nearest to the solution point and it can be regarded as the next iterative initially-chosen point, so the solution problem of the linear equation group can be changed as an iterative problem of approaching the solution on the surface of a hyper-geometry ball.

根据直径对应的圆周角足直角以及直角三角形中短边对小角的原理进一步知道，当将初始点向线性方程组中各个方程所代表的超平面上投影得到投影点时，初始点和其任何一个投影点及方程组的解点都将位于一个相应的超球面上，其中必定存在一个投影点离问题解点的距离最短，即把该点作为下一次迭代的初始点，从而可将线性方程组求解的问题变成球面上逼近解点的迭代问题。

The only odd-numbered ball on market is a ball with 333 dimples.

唯一的奇数球的市场是一个球333酒窝。

He drops a ball immediately behind that divot hole. the ball rolls nearer the hole than the spot from which the previous stroke was played, but not more than two club-lengths from where is was first struck the ground.

这名球员立刻在那块草皮后面抛了一个球，球滚到了比前一杆打球地点更接近球洞的地方，但距离第一次击打到地面时的距离不超过两个球杆远。

When you play dodge ball, never let the ball hit you.

当妳玩躲避球时，千万别让球打到妳。

Some dog trainers combined scent hurdle racing with the dogs bringing back tennis ball to the finish line. Then a tennis ball-launching apparatus was added and the first flyball box was born.

一些驯犬师将气味障碍赛与犬捡回网球到起点线结合在一起，此后网球发射装置被加入到赛道中，就这样第一个飞球发射盒子诞生了。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

"I think we can get more against a team that comes to double-team me. Phoenix, they came after I caught the ball, right after I caught the ball. We didn't get enough from that."

"我想我们应该更多尝试那些包夹我的球队，比如太阳队，他们在我拿到球后坚决包夹，就在我拿球后，我们做的还不够好。"

If these MVP candidates give up the ball, they're doing one of two things: they're trusting you that you can do good things with the ball once you get it from them or they're passing out of the double-team.

如果这些 MVP 候选人放弃了球，他们或者是相信你拿球后能很好的处理球，或者是传球失误了。

6 The only exception to rule 3.5.3 is the use of a rotating drum that imparts dynamic back spin on the ball to keep the ball on its surface. This is called a "dribbler".

规则3.5.5的唯一例外是转盘的使用，它可以给球提供向后旋转的动力，将球维持在转盘的表面上，这称为"盘/运球"。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。