Production chromatography is a relatively new entrant to the range of unit poerations available to chemical engineers. Its use is increasing as the demand for high purity materials grows.
对于化学工程来说,生产色谱是一个比较新的领域,随着对于高纯度物质需求的不断增长,其应用将越来越广。
A new Army Reserve unit is being created to provide the expertise available from three Department of Defense organizations to support sustained contingency operations.
美军将成立一支新型的陆军后备队,提供来自国防部三个组织部门的专业技能,以应对军事行动中不断发生的意外情况。
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