Structured lipid can be produced bychemicalmeans or by lipase, the latter has more advantage.
结构化脂质可用化学方法或酶法生产，而后者具有许多优点。
2
Substances that have been manufactured bychemicalmeans using petroleum compounds or natural gas as raw materials.
以石油化合物或天然气为原料用化学方法制造的物质。
3
The content of metal elements in Huangshan Maofeng tea was determined bychemicalmeans, so as to provide reference basis for its further development and utilization.