三等: third-class二等水钻: second water一等水钻: first water〔美国〕三等水手。: apprentice seaman三等水兵: apprentice seaman; ordinary seaman三等水手: apprenticeseaman三等水准测量: third order leveling二等水手三等水兵二级水手: ordinary seaman水钻: cz diamond等水: wow wait on water三等: third-class◇三等秘书 [外] third secretary河水钻: rivers探水钻: water exploring drill; waterpro ecting drill; waterprospecting drill等水位: equivalent water level三等兵: airman third class; apprentice seaman; basic private三等舱: third-class 他们乘三等舱去上海旅行。 they traveled to shanghai in third-class三等的: third class; third rate; third-class; third-rate三等分: trisection; trisector三等功: third-class merits三等奖: the third prize三等票: third class ticket三等品: third grade product◇三等品羊毛 choice三等站: third class station不返水钻孔: blind hole冲水钻井法: wash drilling