例句 /

Class A: areal geology survey; hydrogeology survey; engineering geology survey; environment geology survey; solid mineral exploration.

Class A: areal geology survey; hydrogeology survey; engineering geology survey; environment geology survey; solid mineral exploration.

5654719甲级:区域地质调查;水文地质调查;工程地质调查;环境地质调查;固体矿产勘查。