The meaning of quasi dynamic calibration of copper balls using to measure artillery chamber pressure is presented.

介绍了火炮膛压测压铜球准动态校准含义，分析了引起准动态校准压力对照表编表误差的因素。

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The meaning of quasi dynamic calibration of copper balls is presented and factors affecting errors on working out the table with quasi dynamic calibration is analyzed.

介绍了火炮膛压测压铜球准动态校准含义，分析了引起准动态校准压力对照表编表误差的因素。

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Surely there was a way to keep the disinterred metal root balls sprouting in the lab, coaxing their fruit to full succulent ripeness as the noblest of metals — lead into silver, copper to gold?

真的有方法可以让这些挖掘出来的金属根茎球在实验室里继续生长，就像成熟多汁的果实一样变成贵金属 -- 从铅变成银，从铜变成金？

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Ordinary hackers outfit themselves with the clubs and balls and shoes and copper wristbands of their favourite pros in the hope that a little of the magic will rub off on them.

ECONOMIST: Tiger Woods