bulletn. 子彈彈、距節(馬)學術名詞插塞:電機工程、電力工程錐形體:電機工程、電力工程子彈:電機工程標題符號:資訊[子]彈:電力工程槍彈:海事釣具用沈子:海事英文釋義a projectile that is fired from a guna high-speed passenger train(baseball) a pitch thrown with maximum velocity