The double groove steel is suspended under the two nodes of bottom chord of steel roof truss to prevent the bottom chord from stretch bending.

The analysis reveals that the dynamic behavior of the converse trapezoid CHS truss with double pipe bottom chord is quite good.

分析表明以下弦双钢管为特征的倒梯形立体管桁架的动力特性非常理想；

The influence of crane load to the internal force of bottom chord bar of trapezoid steel roof truss

水动力荷载；吊车荷载对梯形钢屋架下弦杆内力的影响

Institute on The Hole Drill Technique of Bottom Chord Bar of Zhengzhou Yellow River Bridge

郑州黄河桥边桁下弦杆制孔工艺研究

The bottom chord of the truss is used by pre-stress steel bar.

主楼和裙房间采用大跨鱼腹桁架，桁架下弦采用高强度预应力钢棒。

The Construction Analysis of Prestressed Bottom Chord Shuttle Shape Spatial Truss

下弦管内预应力梭形空间桁架结构施工分析

This method can display the extremely fine effect, the jet black bottom color and the rich charm middle melody, is other techniques is unable to compare.

这种方法能够表现出极为精细的效果，漆黑的底色和富有魅力的中间调子，是其他技法所无法比拟的。

The top and bottom color entries are set to black ( 0,0,0).

顶部和底部的颜色项是设置为黑色。

The family was the cornerstone that constituted the Chinese tradition society," family standard" the culture constituted the traditional culture bottom color.

家族是构成中国传统社会的基石，“家本位”的文化构成了传统文化的底色。

The camel sign fragrant cigarette case bottom color is faint yellow, metaphor broad desert.

骆驼牌香烟盒的底色是淡黄色，暗喻广阔的沙漠。

The Manufacturing of the Bottom Cover

底遮板的加工

Bottom cover powder coated steel plate.

上下罩：钢板烤漆压筋。

The key of the problems is to design the seals and the speeding mechanism of the bottom cover of the reactor reasonably.

解决问题的关键在于密封和高分子聚丙烯酰胺反应器底盖快速开启机构的合理设计。

The Design Principle of Empty Jar Bottom Cover Counting Number Machine

空罐底盖计数机设计原理

Construction and commercial real estate was a proven way to go until the bottom suddenly fell out.

在触底之前，建筑和商业不动产是不错的方法。

The stock market had seen a few days of wild selling and buying beforehand, but on October 28th and 29th the bottom fell out.

股市在那之前的前几天有大量的易手，但在十月28、29日跌破底线。

IN THIS ARTICLE: Six years after the bottom fell out of the art market in 1990, the very rich are buying again.

本文简介：1900年艺术品行市暴跌，6年过后，富豪们再度将钱投向艺术品。

The bottom fell out of his world ( ie His life lost its meaning) when his wife died.

他妻子死时，他的世界陷於崩溃（他的生活失去了意义）。

Then the market's bottom fell out in the dot-com bust.

后来，网络泡沫破灭，市场形势急转直下。

But then the bottom fell out.

但是随后经济陷入低谷。

The bottom fell out of the Muni bond market as a result.

美国市政债券市场因此再创新低。