§6—6—3 分析试样操作
分析试样经切割以后、要磨去表面氧化层,用研磨机磨样时,试样和标钢要同时操作,要力求操作一致,用力过大则易使表面氧化。磨纹要求一致,不应有交叉纹。试样磨后不宜放置过长,否则造成试料表面氧化,影响分析结果。
一般可采用A12O3中软,粒度为360的砂轮片磨样,此外也可用砂纸或砂轮磨样。作者: victor12 时间: 2010-10-19 13:46 标题: Tiger Woods with Golf Game
Tiger Woods with Golf Game
Phil Mickelson could pass Tiger Woods as the No. 1 player in the world if he wins this weekend¡¯s Players Championship. Mickelson who may like the golf clubs for sale would become the 13th player to reach the top of the rankings if he wins and Woods finishes outside the top five. In his last two starts Mickelson has won the Masters and finished second at the Quail Hollow championship. Woods who may like the best golf clubs has been ranked No. 1 for 598 total weeks. During that time, only David Duval (15 weeks) and Vijay Singh (32 weeks) have supplanted Woods. ishiner