Cutting phaseWhen the protruding peak of holystone surface and coarse raceway surface is contacted, because osculatory area is lesser, the pressure on unit area is greater, below constant pressure action, holystone gets above all of workpiece " a traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters is cut " action, make the part of holystone surface grinds bead to fall off with disintegrate, show a few new grind bead and blade edge ......

切削階段磨石表面與粗糙滾道表面的凸峰接觸時，由于接觸面積較小在线欧美一级视频网站，單位面積上的壓力較大三级片免费网站视频，在一定壓力作用下，磨石首先受到工件的"反切削"作用在线99热这里只有精品，使磨石表面的部分磨粒脫落和碎裂，露出一些新的鋒利的磨粒和刃邊bbixxcon。與久久久免费播放视频。。国语午夜成人三级片。欧美妓女视频。。www..com黄色视频国产。

coarse grind：粗磨

唯一可以不加任配料便可飲用的咖啡.目前產(chǎn)量大約占世界咖啡總產(chǎn)量的70%.其次是羅百氏特(Robusta)咖啡豆,多數(shù)作為阿拉伯咖啡豆的次選材料.咖啡豆最基本的研磨方法有:粗磨(coarse grind),中磨(medium grind)和細(xì)磨(fine grind).(2)ROBUSTA品種:擁有病蟲害抵抗力強(qiáng)的特性,