1) navigation clearance
通航净空
1.
According to the data from the hydraulic model of E Gongyan bridge,analysis of the navigation clearance,effects on water condition of downbound & upbound and channel dimensions,we draw the conclusions that the building of the bridge has effects on sailing and that the location and pattem of E Gongyan bridge are reasonable.
根据鹅公岩大桥桥区河段水工模型试验资料 ,通过对大桥修建前后桥位处的通航净空尺度、整个桥区河段上、下行水流条件及航道尺度的影响分析 ,表明鹅公岩大桥修建后对通航影响甚小 ,桥位及桥型方案合理可行 。
2.
The relationship between navigation clearance and design vessel colli- sion force of highway bridges is analyzed.
本文对公路桥梁的通航净空与设计船撞力之间的关系作了分析,并采用《美国公路桥梁设计规范》对拟建的伶仃洋公路大桥的设计船撞力作了分析计算。
2) navigation clearance
通航净空尺度
1.
Demonstration on navigation clearance and technique demands for secondary navigable spans of Xiangshan port bridge;
象山港大桥辅助通航孔通航净空尺度和技术要求论证
3) navigation clearance
航道净空
4) shipping clearance
航运净空
5) driving headroom
交通净空
6) minimum shipping clearance
主航道净空
补充资料：飞机场净空区
见飞机场附近障碍物限制。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条