The vegetables wrapped in preservative film are refined vegetables.
这些用保鲜膜包着的菜是精菜。
Using chilled beef as materials, the effects of preservative film, bacteria and light on color change of chilled beef were studied.
以冷鲜牛肉为原料，研究了保鲜膜、细菌和光照对肉色变化的影响。
The preservative film cutter is simple in structure and convenient for use, is solid and durable, can be used for replacing the packing carton to save resources.
本保鲜膜切割器结构简单、方便实用、坚固耐用，可代替包装纸盒，节约能源。
The use of chitin with inherent mildewproof features makes the paint un-deteriorated without added preservative and the paint film midewproof and environment protecting.
本发明利用甲壳质固有的防霉特性，不使用杀菌防腐剂就可保持涂料不变质：涂料干燥成膜后，仍然具有天然的防霉特性甲壳质环保涂料。
The use of chitin with inherent mildewproof features makes the paint un-deteriorated without added preservative and the paint film midewproof and environment protecting.
本发明利用甲壳质固有的防霉特性，不使用杀菌防腐剂就可保持涂料不变质：涂料干燥成膜后，仍然具有天然的防霉特性甲壳质环保涂料。
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