In testing hit straight balls of Billiards,the pot object balls have a good effect on the next hit straight balls and the missing objectballs have a bad effect on the next hit straight balls.
在台球课直线球测试中 ,成功的目标球对下一直线球产生积极影响 ,失误的目标球对下一直线球产生消极的影响。
down-the-line shot
沿边线打击的直线球
To hit(a ball)sharply, usually in a straight line.
击出边线快速直线球通常沿着直线方向猛击（球）
The Effects of Pot object-balls and Missing Object-balls On Hit straight Balls of Billiard;
谈成功与失误的目标球对台球直线球的影响
The Error Analysis and Their Rectifying Approaches to Teaching Billiard Hit-straight Ball;
台球直线球教学中常见的错误分析及纠正方法
Return goes to your left. You're on time, closer to your center line. Crosscourt. Or you're late, stretched out, reaching. Down-the-line.
回球回到你的左侧.你及时赶到,靠近球场中间,跨场斜线.如果晚了,要够球,直线球.
Lines pierce the sphere in points.
直线与球面相交为点。
Measurement of odd boss raceway diameter of linear motion ball bearing
直线运动球轴承奇数凸台沟道直径的测量
one of the two ends of a magnet where the magnetism seems to be concentrated.
磁力线在地球表面是垂直的两点之一。
The Perpendicular Collision of a Particle and a Homogeneous Bar;
小球与轴线位置可变定轴杆垂直碰撞
If you throw a ball, it does not move in a straight but in an arc.
抛出的球不作直线前进，而是沿着弧线移动。
They can be pressed into the housing bore directly.Linear ball bearings are only suitable for linear motion.
直线运动球轴承只能用于直线运动，不能作为旋转运动部件的支承。
Linear motion bearings--Linear motion ball bearings--Boundary dimensions and tolerances
GB/T16940-1997直线运动支承直线运动球轴承外形尺寸和公差
Inter win their fourth corner of the second half. Recoba's cross goes out of play and Chievo win a goal kick.
下半场的第四个角球，这一次雷科巴直接将球开出了底线，对方门球。
These bulges stay constantly orientated in line with the direction of the Moon.
这些凸出部分总是与月球的方向成直线。
Move your mouse or trackball in the straightest line possible.
尽可能在最直的线上移动您的鼠标或轨迹球。
A straight line segment passing through the center of a figure, especially of a circle or sphere, and terminating at the periphery.
直径穿过一图形，特别是圆形或球形的中心到圆周结束的直线段
Pig receiver& launcher shall be horizontal, and the diameter of pig valves shall be equal to the inner diameter of the pipe cleaned.
收发球筒采用卧式平放，收、球阀的直径应等于被清扫管线的内径。
Players on the other side must not enter the centre circle until the Ball has been kicked off.
直到中线开球的另一方的队员要等球被踢出后才能进入中圈。