shallow pan浅盘shallowadj.浅的；薄的n.浅滩；浅处v.变浅shallow-lying coal seam浅埋煤层shallow-spherical shell扁球壳shallow water attack light浅水攻击信号灯shallow undermining method浅埋暗挖法shallow-buried coal seam浅埋煤层shallow-trench isolation(浅槽隔离)shallow underground tunnel浅埋隧洞shallow-water correction浅水修正shallow bore withhold mine浅孔留矿shallow seismic reflection浅层地震反射波法