sell by weight的意思|示意

Only those silver coins which were much worn by usage or in any other way defaced or reduced in weight remained in current use; it did not pay to export and to sell them on the bullion market.

只有那些由于经年使用 而严重受到磨损、或因任何方式损坏或损失重量的银币继续流通使用；将这些银币出口以及在黄金市场上销售也不值得。

Amy: Do you sell them individually or by weight?

艾米：是论个卖还是论重卖？

We sell our cotton piece goods by yard not by weight.

我们销售棉布是按码计数，不是按重量计数的。