preservation and packaging造句

例句与造句

1. Various food preservation and packaging techniques are used to extend a food's shelf life.
2. Farming flowers and foliage employs special aspects of floriculture, such as spacing, training and pruning plants for optimal flower harvest; and post-harvest treatment such as chemical treatments, storage, preservation and packaging.
3. It's difficult to find preservation and packaging in a sentence. 用preservation and packaging造句挺难的