基础组分，标准物质，关键组分...

key component的音标：key component的英式发音音标为：[ki: kəm'pəunənt]key component的美式发音音标为：[ki kəm'ponənt]...

Enriched uranium is a key component of a nuclear weapon.浓缩铀是核武器的关键组成部分。Membrane electrode assembly ( MEA ) is the key component of DMFC.膜电极 ( MEA ) 是直接甲醇燃料电池(DMFC)的核心部件.Balance ram is a key component of a two - leg shiel...