铜炮
铜炮-
浑夭仪号的大艇和捕鲸船开到了这个地方，费了很大气力，船上人员才把一个重一千八百斤的锚，一门口径八分的铁铸大炮，一大块铅和两尊铜炮打捞上来。
A launch and whaleboat from the new Astrolabe were steered to this locality , and after going to exhausting lengths , their crews managed to dredge up an anchor weighing 1800 pounds , a cast-iron eight-pounder cannon , a lead ingot , and two copper swivel guns .
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方法采用矿相显微镜、电子探针微区分析技术对自然铜不同炮制品的微结构、形貌、物相和化学成分进行分析。
Methods To analyse the changes of microstructure , morphology , mineral phase , and chemical compositions in different PP by ore microscope , electron probe microanalyzer technique .