Why - he was standing over the whey-tub to let off the whey, and the shade of his face came upon the wall behind, close to Izz, who was standing there filling a VAT.
我是说——他站在装奶清的桶的旁边撇奶清，他的脸的影子落在身后的墙壁上，正好在伊茨的旁边。
The results showed that almost all protein could be recovered for treating whey wastewater by ultrafiltration with 8000 daltion molecular weight cut-off membrane.
结果表明：废水经截留分子量为8000的超滤膜，可回收几乎所有的蛋白质；
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