到南方出差看到一种木桶，它是由十几块同尺寸、同质量的木板条围合而成的，板条之间衔接严丝台缝，可以盛水、盛粮食。这种木桶的容量高度取决于最短的那块板条，假如十几块板条当中，有一块板条较短，那么这个木桶的容量高度便在最短的权条水平线上，其它若干块板条再长，也 Traveling to the South to see a wooden barrel, it is made up of a dozen wooden slats of the same size and of the same quality, and the slats are connected by a string of fissures to hold water and food. The capacity of this barrel is highly dependent on the shortest slat. If a sliver of a dozen slats is short, then the capacity of the barrel is on the shortest horizontal bar. Longer slats, also