请翻译由于这些筒仓出货较慢为了保证装车进度当这些筒仓出不来货物时会安排装其他船货物的筒仓补满。因此我船货物与他船货物在运输到工厂前已经掺混一次。收货人估计掺混比例约为15：85我船：他船

Due to the slow delivery of these silos, in order to ensure loading progress, when the goods cannot be delivered from these silos, other ship's silos will be arranged to fill up. Therefore, my ship's goods and his ship's goods have been mixed once before transportation to the factory. The consignee estimates that the mixing ratio is about 15:85 (my ship: his ship).