RL：顶板水平面
在建筑设计与工程制图等专业领域，“Roof Level”常被缩写为“RL”，便于快速书写与日常使用。该术语专指建筑物顶部结构板的水平面高程，是确定建筑竖向定位的重要基准，广泛应用于建筑、土木工程及相关学术科研场景。中文通常译作“顶板水平面”。
Roof Level的英文发音
例句
- Bulky materials will be lifted by mobile crane from roof level to ground level.
- 大件物料将由吊机从天台吊运到地面。
- The dispersion characteristics of vehicle emission pollutants in street canyons depend on roof level wind speed and direction, and are affected by street canyons width / height ratio and symmetry, and the shape and building heights distribution of blocks surrounding line sources.
- 街道峡谷中机动车排放污染物的扩散取决于屋顶风向和风速，并受街道峡谷宽高比、峡谷两侧街区建筑物高度的对称性和高度分布及街区形状等因素的影响。
- The Influence of the Natural Wind on the Efficiency of Roof Level(RL) Intakes for Pressurization Systems
- 自然风对正压送风系统屋顶进风效果的影响
- Study on Coal rock Caving Laws and Control in Hard Coal and Hard Roof Sub level Caving Fully Mechanized Face
- 两硬综放面煤岩冒放规律及控制研究
- According to the hydro-geological condition of Longkou mining area the monitoring and forecasting system, which is base on the roof aquafer water level and water quality is established.
- 龙口矿业集团在海下采煤中，根据矿井水文地质条件，建立了以顶板含水层水位和矿井涌水水质为背景标志的水情监测预警系统。
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