ascertained weight

例句：

1. 1.The scientist ascertained the weight of the sample by measuring its dimensions.
   科学家通过测量样本的尺寸来确定其重量。
2. 2. The weight of the package was ascertained before it was shipped.
   在发货前，已经确定了包裹的重量。
3. 3. The ascertained weight is crucial for calculating shipping costs.
   确定的重量对于计算运费至关重要。