单词：biotechnologies
n. the branch of molecular biology that studies the use of microorganisms to perform specific industrial processes
n. the branch of engineering science in which biological science is used to study the relation between workers and their environments
biotechnologies的用法和样例：
例句
- Enzyme engineering is an important composing part of modern biotechnologies.酶工程是现代生物技术的重要组成部分。
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