常见例句SEA ENGINEERING GEOLOGICAL EXPLORATION DRILLING RIG HGD TYPE 海洋工程地质勘察钻机HGD系列Performance comparison of HGD non-cyanide zinc immersion solution and marketable non-cyanide zinc immersion solution HGD无氰浸锌溶液与市售无氰浸锌溶液性能比较HGD gene HGD基因 返回 HGD