四線快速球 (Four-seam Fastball, Four-seamer)
二線快速球 (Two-seam Fastball, Two -seamer
快速指叉球 (Split-Finger Fastball, SFF)
- 1 decade agoFavorite Answer
Fast ball of Line four (Four-seam Fastball, Four-seamer)
Though it is the linner ball, still there is straining that gravity will be caused. But by virtue of what has been seen and is used to, the persons who generally play can think the ball straight to come over directly.
Fast ball of Line two (Two-seam Fastball, Two -seamer
Because there is fewer rotation of the ball than fast ball of Line four, and there is rotation of deviating from the central point, so will fast ball ' frank to come over direct ' to lose more than Line four, may run internal and external corner.
Qu Qiu (Curveball)
The rotation of the ball is contrary to linner ball, cause the ball to drop fast, and will often move to the exterior angle of person who hits right.
Slippery ball (Slider)
The first half a section of orbits is the same as linner ball, will drop to the exterior angle of persons who hit when getting when the home base board.
Point a fork of balls (Forkball)
The first half orbit similar to linner ball, ball speed because pitcher different differences very heavy. Get when the home base board, will drop violently, the good one points a fork of balls and will all fall ahead of time each time even, and let the persons who hit wave freely.
Point a fork of balls (Split-Finger Fastball, SFF) fast
The first half a section of orbits and speeds is similar to linner ball, will drop in front of entering the home base board.
Game that change speed (Change-up)
Similar to linner ball while selling, but the speed of ball is had slowly, one is sudden that bat in order to the persons who destroy hitting; The ball will drop to the interior angle or the exterior angle in front of entering the home base board.
Point the joint ball (Knuckleball)
The ball is very slow in speed, but can't even predict the route of the ball and range changed to shoot a hunter.Source(s): 我