本地纯净下载
纯净官方版WWW,783312,COM-783333,COM
建立与低空经济产业发展相匹配的适航安全设施、标准、体系,需要巨大的资源投入,当下面向低空经济发展的适航资源不足,是急需补齐的短板。中国航空学会适航分会委员、电动航空分会委员金镭告诉记者,据不完全统计,属于适航管理范畴的可能有两三千家企业,4000多个型号,有适航审定需求的型号目前大约有七八百个。
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