点线 dot line?
点描法地图 dot map?
点描法 dot method?
点状网目板 dot screen?
双键 double bond?
双重暗盒 double cassette?
双海岸线 double coast line?
复分解 double decomposition?
双像视距仪 double image tacheometer?
双像望远镜 double image tube?
双层 double layer?
双程水准测量 double levelling?
点描法地图 dot map?
点描法 dot method?
点状网目板 dot screen?
双键 double bond?
双重暗盒 double cassette?
双海岸线 double coast line?
复分解 double decomposition?
双像视距仪 double image tacheometer?
双像望远镜 double image tube?
双层 double layer?
双程水准测量 double levelling?
双线刻针 double line cutter?
双观测 double measurement?
双重投影 double projection?
立体测图仪 double projector?
双折射 double refraction?
双曲线笔 double ruling pen?
复盐 double salt?
像片双重抽样法 double sampling in aerial photo?
双像测距仪 double stadiometer?
双火山 double volcano?
海槽 downfold?
下降风 downgust?
倾盆大雨 downpour?
下落断层 downthrow fault?
下切侵蚀 downward erosion?
淡褐色粘土 drab clay?
牵引阻力 draft requirement?
绘图精度 drafting accuracy?
绘图板 drafting board?
阻力系数 drag coefficient?
拖曳褶皱 drag folds?
沼泽草炭 drag turf?
排水瓦管 drain tile?
排水沟 drain?
水系异常 drainage anomaly?
汇伶积 drainage area?
硫 drainage basin?
排水渠道 drainage channel?
排水密度 drainage density?
硫分界线 drainage divide?