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。
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.
失重式给料机根据工作时控制重量损失的原理设计，是一种具有计量功能的连续给料设备。
The weight loss feeder designed according to operating time controlled weight loss principle is a kind of continuous weighing feeding equipment.
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