批準的英語翻譯：

approve; authorize; confirm; pass; ratify; sanction; seal; warrant
【經】 approbation; authorization; ratification

代理的英語翻譯：

act as an agent; deputize; substitute; surrogate
【經】 agency; per procurationem; surrogate

機構的英語翻譯：

institution; organization; framework; house; machine; mechanism; organ; outfit
setup; wheel
【化】 mechanism
【醫(yī)】 institution; mechanism; organization