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