outer shell electron 外电子
outflow 瘤
outgoing radiance 射出光亮度
outgoing radiation 逸出辐射
outlet 出水口
outlet glacier 注出冰川
outlier 遗证岗
outline 轮廓线
outline chart 略图
outline draught 平面图绘制
outline map 略图
output 输出
output device 输出设备
output image 输出图像
output per hectare 每公顷产量
outwash 冰水沉积
outwash gravel 漂水砾
outwash plain 冰水沉积平原
ovary 子房
over exposure 过度曝光
over irrigation 滥灌
overburden pressure 表土层压
overdeepened valley 过蚀谷
overdevelopment 过度显影
overfall 溢水坝
overflow 溢流
overflow dam 溢劣
overflow meadow 泛滥草甸
overflowing 洪水
overfold overturned fold 倒转褶皱
overground part 地上部分
overhead irrigation 人工降雨
overheating 过热
overland flow 坡面漫流
overland runoff 地表瘤
overlap 超复
overlap control 重叠蝶器
overlap indicator 重叠指示器
overlap of strips 带重迭
overlap region 重叠区域
overlap regulator 重叠控制器
overlapping coefficient 重叠率
overload 超载
overloaded river 过负荷河