底箱

超音速射流对发射筒底箱的冲击流场计算

Flow field calculation of supersonic jet impingement on canister-launched plenum

我会通知装卸领班让工人将这些重机器箱装紧，并注意重量要均匀分布在底箱上。

I 'll contact the foreman to tell the stevedores to stow the heavy machinery cases closely and note the even distribution of the weight on the bottom cases .

主墩承台采用无底吊箱围堰施工工艺

Adopting Bottomless Craned Concrete Box Cofferdam Technology for Construction of Main Pier Bearing Platform

弧形底宽箱梁横向预应力空间作用效应分析

Analysis of Spatial Effect of Transverse Prestress on Wide Box Girder with Curved Bottom

城市高架弧形底宽箱梁桥横向效应分析弧形制动器，弧形制动闸

Analysis on Transverse Effect of Urban Elevated Bridge with Broad Box Girders of Arc Bottom

以上海市中环线工程为工程背景，讨论了宽跨比较大的弧形底单箱多室箱梁在横向预应力作用下的受力特性。

Taking Shanghai Medium Ring Road Project as the project background , the paper discusses the forced characteristics of arc bottom and single box , multi cell box beam with greater width span ratio under transverse prestressed action .

结合番禺市桥三桥扩建工程主墩承台吊箱围堰施工，介绍无底吊箱在承台高程与河床高程相接近的围堰施工情况。

Combining construction of main pier bearing platform of Panyu Municipal Bridge # 3 Extension Project by adopting craned concrete box , this paper introduces construction of bottomless craned box for cofferdam with similar elevation of bearing platform and river bed .

单层共底燃料贮箱五种检漏方法研究

Study on five leakage checking methods for single layer and common base tank

深水高桩承台采用无底钢吊箱施工工艺；

Cap slab with high piles construction in deep water ; construction workmanship of un-bottom steel box ;

目前桥梁下部结构深水施工多采用沉井、无底钢套箱围堰或有底钢套箱围堰法。

At present , Construction of bridge substructure mostly use deep caisson , no-bottom steel boxed cofferdam methods or bottomed steel boxed cofferdam methods .

当今各国应用的运载火箭上，单层共底燃料贮箱的检漏方法大致可归纳为两种类型：真空检漏法和累积法检漏。

The leakage checking methods for single layer and common base tank can generally be divided to two kinds : vacuum method and accumulating method .

对上述五种检漏方法通过可靠性、投资费用、检测时间三项技术指标进行了评估，认为单层共底燃料贮箱的使用状态采用累积法检漏较佳。

Through the evaluation of above five leakage checking methods against three technical index of reliability , investment and check time , it is thought that the accumulating methods are better for the use of single layer and common base tank .

乔伊斯我的两件物品都可以放入座位底或上方置物箱。

Joyce Both my items will fit under the seat or in an overhead bin .

不同基质构建海水水族箱硝化功能建立过程的比较研究沙质底质与无沙底质水族箱水质因子变化的比较

Effects of different substrates on the construction of nitrification function in marine aquarium Comparison on the Changes of Water-quality Factors in the Aquaria with Sandy Sediment and No Sand Sediment