Because source limited, utilize gene engineering produce from bacterium or yeast for realize industrialization, it is the effective way of solving its imbalance between supply and demand.

由于来源有限，利用基因工程技术从细菌或酵母中生产人溶菌酶实现产业化，是解决其供需矛盾的有效途径。

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While helium users are dealing with the effects of limited supply, Congress is working on critical legislation that will continue to ensure a needed source of helium until the private sector has enough helium production to meet worldwide capacity.

CNN: Don't deflate the party