降低恢復係數要從哪部份材質著手 - 棒球

By Sandy
at 2020-05-27T09:58
at 2020-05-27T09:58
Table of Contents
這是990的剖面圖
http://i.imgur.com/XsAe9C3.jpg

最裡層:軟木
黑紅圈:橡膠
中間毛茸茸:羊毛線
外皮:牛皮
縫線:純棉
聽說990跟美日用球成本差3倍,那是哪部分差3倍?
另外,與其調整恢復係數,為何不增加球的重量?目前是規定不得重於148.8g啦~
如果重量變成手榴彈(600g)那麼重,應該就可以解決打大於投的問題吧
-----
Sent from JPTT on my Xiaomi MI 9.
--
Tags:
棒球
All Comments

By Margaret
at 2020-06-01T03:40
at 2020-06-01T03:40

By Jack
at 2020-06-05T14:01
at 2020-06-05T14:01

By Eden
at 2020-06-05T23:38
at 2020-06-05T23:38

By Dora
at 2020-06-08T05:40
at 2020-06-08T05:40

By Kama
at 2020-06-10T03:29
at 2020-06-10T03:29

By Dora
at 2020-06-12T13:27
at 2020-06-12T13:27

By Lily
at 2020-06-15T04:28
at 2020-06-15T04:28

By William
at 2020-06-15T13:43
at 2020-06-15T13:43

By Oscar
at 2020-06-17T05:41
at 2020-06-17T05:41

By Cara
at 2020-06-20T07:07
at 2020-06-20T07:07

By Jake
at 2020-06-21T23:40
at 2020-06-21T23:40

By Rachel
at 2020-06-22T16:58
at 2020-06-22T16:58

By Tracy
at 2020-06-27T00:19
at 2020-06-27T00:19

By Regina
at 2020-06-27T17:43
at 2020-06-27T17:43

By Gilbert
at 2020-07-02T16:14
at 2020-07-02T16:14

By Blanche
at 2020-07-06T22:20
at 2020-07-06T22:20

By John
at 2020-07-10T00:14
at 2020-07-10T00:14

By Vanessa
at 2020-07-13T16:41
at 2020-07-13T16:41

By Audriana
at 2020-07-16T09:23
at 2020-07-16T09:23

By Yuri
at 2020-07-19T05:14
at 2020-07-19T05:14

By Ida
at 2020-07-20T16:43
at 2020-07-20T16:43

By Joseph
at 2020-07-24T21:08
at 2020-07-24T21:08

By David
at 2020-07-29T18:29
at 2020-07-29T18:29

By Tristan Cohan
at 2020-07-31T21:26
at 2020-07-31T21:26

By Freda
at 2020-08-04T00:54
at 2020-08-04T00:54
Related Posts
著名的自殺棒

By Joe
at 2020-05-27T09:47
at 2020-05-27T09:47
目標轉往頂薪肥羊 球團新提案要大咖球星

By Queena
at 2020-05-27T08:03
at 2020-05-27T08:03
SPC-日職》令和怪物飆160公里影片曝光

By Michael
at 2020-05-27T07:42
at 2020-05-27T07:42
如果換完球還是一樣打遠高於投怎麼辦?

By Aaliyah
at 2020-05-27T07:34
at 2020-05-27T07:34
「超前部署」中職何時能學會?

By Quanna
at 2020-05-27T02:30
at 2020-05-27T02:30