“proof coin”的概念、定义、翻译、参考文献-科学参考

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。

单词	proof coin
释义	proof coin 样币
随便看	cylinder stock cylinder stroke cylinder teaseling machine cylinder temperature indicator cylinder test cylinder tools cylinder top head cylinder top steam pipe cylinder truck cylinder type absorber cylinder-type chaff-cutter cylinder-type cutter cylinder-type cutterhead cylinder type jetty cylinder typemagnetic thin film memory cylinder-type shredder cylinder-type side delivery rake cylinder-type silage cutter cylinder type wheel cylinder under casing cylinder valve cylinder volume cylinder wall cylinder wall temperature cylinder wall thickness