英语词汇“老人學”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	老人學
释义	老人學 lǎo rén xué為研究老人的一門科學，對年老的現象及老人問題作科學的研究。
随便看	coal production coal production ability coal production enterprise coal production under unified central planning coal product quality coal products selling coal projection coal properties coal property coal property characteristics coal property coal blend coal property data coal property evaluation Coal property evaluation with standardization coal property prediction coal property standard coal property test coal prospecting coal prospecting model coal prospecting style coal protein gene coal province coal pulp coal pulverization coal pulverized system