1.
External defects: undercut,overip,arc pit, gas cavity in surface,crack in surface.
外部缺陷：咬边、焊瘤、弧坑、表面气孔、表面裂纹。
2.
3D Finite Element Analysis of Brace with Arch Boundary Foundation Pit during Excavation
弧形边界基坑角撑受力性状的三维有限元分析
3.
Construction Analysis for the Foundation Pit Bracing of Arc-type Tunnel after Site Unloading
卸载后弧线型地道基坑围护的施工分析
4.
Numerical Study of Flow and Heat Transfer in Narrow Channel Influenced by Circular Arc Dimple
圆弧型凹坑影响窄缝流道流动与传热的数值研究
5.
The cross section of Beijing Yingshan Mountain tunnel is superlarge scale supershallow overburden,by using of positive step are guiding adit excavation on method are both satisfactory in effect and cost.
北京鹰山隧道断面特大，埋深特浅，采用正台阶弧形导坑施工法开挖，效率及成本均优。
6.
Marked by pits.
有坑洼的，有坑洞的
7.
Fill in sunken places with stones
用石块填平坑坑洼洼
8.
ventilation and drainage of exploratory tunnel
坑探勘探坑道通风排水
9.
Mind the holes in the road.
当心路上的坑坑洼洼。
10.
island arc-island arc collision
岛弧对岛弧碰撞作用
11.
arc arc transform fault
岛弧?岛弧转换断层
12.
automatic submerged slag welding of rail
钢轨自动埋弧电弧焊
13.
right-lateral arc-arc transform fault
右旋弧-弧转换断层
14.
curved restraining shoe
弧形制动器,弧形制动闸
15.
a complementary angle [arc]
【数学】余角 [弧]
16.
Suitable for MMA, argon arc, arc gouging welding.
可用于手工电弧焊、弧焊、弧气刨.
17.
On Excavation Construction Technique of Soft Soil Foundation Pit with Super Deep Foundation "Pit-in-pit"
带有超深坑中坑的软土基坑挖土施工技术
18.
RESEARCH ON EXCAVATION DEFORMATION CAUSED BY SOIL REINFORCEMENT OUTSIDE EXCAVATION IN SOFT SOIL
软土基坑坑外加固对基坑变形的影响分析