The more points you place, the greater the degreeof control you will have over the general direction and curvature of your river.
你放置的点越多，那么你在河流整体方向，曲率的控制度也会更高。
2
Objective: To analyse the root canal curvature frequency, position, direction and degreeof the maxillary first molars.
目的：分析上颌第一磨牙根管弯曲位置、方向及弯曲度。
3
X-ray examination revealed that there were 69 cases whose cervical vertebral physiological curvature became straight or reverse, or with certain degreeof degenerative change.