Yes, we need water packing.

我们需要水封填料。

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It can occur during production, from manure and water, during processing from environmental sources and during the final handling and packing, possibly as a result of poor human sanitation.

这可能来自于生产阶段的粪肥和水，有可能是在加工处理过程中来自于周围的环境，还有可能是在包装环节由于缺乏卫生设备造成的。

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To quantify the packing efficiency, the researchers poured water into the containers to measure the amount of space between the dice.

为了确定装进的数量，研究者倒水到容器里来测量骰子之间的空隙。

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Some scientists say densely packing fish into cages or nets in natural bodies of water, frequently just offshore, can destroy delicate habitats while the waste generated can elevate nitrogen levels to harmful levels.

WSJ: Guidelines for Eating Sustainable Seafood