《中国计量》1997年第4期“计量拾趣”栏目刊登了“赞齐巴尔单位”一则趣话。这个小故事告诉我们，时刻（时间量）是不能互相校准的。老船长的精密时计是以钟表匠的表来校准的，而钟表匠的表是根据老船长正午时刻所发枪声校准的。显然，他们两个的钟表都不可能是准确的。同样道 “China Metrology” 1997 No. 4 “measure” section published a “Zanzibar unit” a funny story. This little story tells us that moments (amount of time) can not be calibrated to each other. The master’s precision timepiece is calibrated by a watchmaker’s watch, which is calibrated against the old captain’s gunfire at noon. Obviously, neither of their watches is accurate. Same way