隧道孔由孔口大、孔内小的“锥子”状转变为孔口小、孔内大的“垒球棒”状。
SEM images indicate that the morphologies of tunnel pits are transformed from the shape like as a cone to a baseball bat after adding PSSA.
很多人拿着自制的武器——金属棒，垒球棒来对抗列队的警察，还有一些人对抢劫更感兴趣。
Many lined up with makeshift weapons including metal bars and baseball bats to confront the line of police, but others seemed more interested in looting.
肯塔基州的路易斯威尔，因为它的波旁威士忌，被成为蓝草的乡村白人音乐，“路易斯威尔重击者”垒球棒以及每年五月举办的德尔比赛马而闻名于世。
Louisville, Kentucky, is best known for its bourbon, its bluegrass, its "Louisville Slugger" baseball bats, and the Kentucky Derby horse race held each May.
肯塔基州的路易斯威尔，因为它的波旁威士忌，被成为蓝草的乡村白人音乐，“路易斯威尔重击者”垒球棒以及每年五月举办的德尔比赛马而闻名于世。
Louisville, Kentucky, is best known for its bourbon, its bluegrass, its "Louisville Slugger" baseball bats, and the Kentucky Derby horse race held each May.
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