单选题
按坝的高度分类，坝高低于（）m为低坝。
发布日期：2021-03-22
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试题解析
低坝
低坝，民间约定俗成而得名的地名。
- 中文名
- 低坝
- 性质
- 地名
- 所在区域
- 江苏省
- 罗马字母拼写
- Dībà
坝高
土石坝的坝高是指从大坝防渗体（不含混凝土防渗墙、灌浆帷幕、截水槽等坝基防渗设施）底部或大坝轴线部位的建基面至坝顶（不含防浪墙）的高度，取其大者。——DL/T 5395—2007 碾压式土石坝设计规范
- 中文名
- 坝高
- 所属学科
- 电力系统
高度
高度。为高度确定元件、设备或其他产品在在贮存、运输和使用中对某一高度（低气压）环境的适应性而将样品放入试验箱(室)，然后将箱(室)内气压降低到有关标准规定的值，并保持规定持续时间的试验叫高度试验（也叫低气压试验）；若是某一水平面以下的高度如-500m的环境适应性的试验叫正气压试验（也叫负高度试验、正压试验、过压试验、高气压试验）。
- 中文名
- 高度
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