同时，我国食品级二氧化碳来源广泛，杂质含量和提纯水平参差不齐，直接影响了后续食品质量。
Meanwhile, the sources of food grade carbon dioxide are wide, and it has different component content and uneven purification levels, which directly affects the quality of subsequent food production.
食品级二氧化碳质量的优劣与人们的身体健康密切相关，因此严格控制二氧化碳产品中的杂质显得尤为重要。
The quality of food grade carbon dioxide has closely related with people's health, so it is particularly important to strictly control impurities in carbon dioxide products.
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