face fall

The 12m reinforced concrete roof truss located at the south side was collapsed in May 2003.

上海某炼胶厂一车间建于20世纪80年代,由南向北并排五跨,屋盖以下采用钢筋混凝土柱、吊车梁等常规作法,但屋架排列很密,为非预应力钢筋混凝土折线形屋架,整体浇筑的钢筋混凝土板直接覆盖在屋架上,为满足采光要求,部分屋架上增设了天窗,其中南边跨的12m钢筋混凝土屋架于2003年5月塌落。

The operation management has good interactive Man-Computer interface with improved-functions , especially the factors of certainty and uncertainty which influence the slump have been studied.

该系统人机交互界面友好,功能完善,特别针对影响商品混凝土塌落度的确定和不确定因素研究,采用了前馈控制算法和模糊控制器相结合的方法,使混凝土塌落度逐步逼近到我们所要求的合理范围之内,做到塌落度的自动控制。

Especially with respect to the study on the slump, this paper proposes before-back control algorithm with detecting percent moisture content of sand, in order to meet the mixture ratio results obtained from experiments made by authors.

特别针对商品混凝土塌落度的研究,采用了前馈控制算法,通过测定沙子的含水率来改变实际的物料配比以迎合由大量权威试验得到的配比表。

Based on theoretical analysis,the bed collapse process of the liquid-solid fluidized bed was numerically simulated.

在理论分析液固流化床内床层塌落过程的基础上,对水和玻璃球体系的床层动态塌落行为进行了多相流数值模拟,详细考察了液体速度突然减小后床层表面和分隔界面随时间的变化规律,模拟结果与经典模型预测值相吻合,表明多相流计算流体动力学模拟可以很好地预测液固流化床的床层动态塌落行为。

Collapse experiments indicate that the bed collapse curve of SiO 2 particles is different from that of Geldart Group A and C particles.

在直径为 35mm的小型流化床中考察了纳米级SiO2 颗粒 (商品牌号R972 )的床层塌落行为 。

Fluidization behaviors of ultra-fine spherical aluminum,flaky aluminum and flaky mica particles with approximate average diameter were studied through methods of bed expansion and pressure drop as well as bed collapse.

分别以粒径相近的超细球形铝粉、片状铝粉、片状云母粉为原料,采用床层膨胀和床层塌落法对其流态化特性进行了研究。

vibrations will cause the roof of the mine to collapse.

震动会引起矿顶塌落。

When did the ceiling cave in ?

天花板什么时候塌落的?

All walls are great, if the roof doesn't fall!

所有的墙都很伟大，只要屋顶不会塌落！

Props were used to prevent the roof collapsing.

用了一些支柱以防止屋顶塌落.

That laboratory is falled because of not having been used.

那个实验室由于未被使用而开始塌落。

"One of our favorite Nursery Rhymes-I'm sure everyone knows ""London Bridge is falling down""."

有一首尽人皆知的儿歌：伦敦桥要塌落。

Analysis on Surface Impact Vibration in Blasting Demolition of Building;

建筑物爆破拆除塌落触地震动效应研究

The Effact Research of Rail Bar in the Dealing with Rock Collapse and Stone Fall Disease;

钢轨栅栏在崩塌落石病害整治中的应用研究

Research of Collapse Course and Ground Vibration in Demolishing Building by Blasting;

爆破拆除塌落过程及触地震动的分析研究

CASE ANALYSIS OF OUTFIRE TROUBLE IN BOILERS DUE TO ASH-SLAG COLLAPSE AND COUNTER-MEASURES THEREOF

灰渣塌落引发的锅炉灭火故障案例分析及对策

Experiment and Calculation of Vibration in the Roof Caving of Underground Mine Cavity

地下矿山空区塌落产生震动的实验与计算

DISCUSSION ON CALCULATION FORMULA OF COLLAPSING VIBRATION VELOCITY CAUSED BY BLASTING DEMOLITION

爆破拆除塌落振动速度计算公式的讨论

Safety Analysis of Nearby Building Structure under Collapse Vibration in Blasting Demolition;

建筑物爆破拆除塌落振动作用下周边结构的安全性分析

Design and Research on the Drum and Blade of Concrete Mixing Truck for Low Stump Concrete;

低塌落度混凝土搅拌运输车罐体及叶片设计与研究

SNS Soft Protective System on Dangerous Rockbody (rockfall) of QingLian Expressway;

柔性防护技术在崩塌落石灾害防治设计中的选用

The Formation Mechanism of Three-dimensional Soil Arching and the Applied Research in Slope Engineering

三维塌落拱的形成机理及其在边坡工程中的应用研究

The mass that slides.

塌方滑落的成堆物质

with the peeling paint and falling-down veranda,

外面的油漆都脱落了，阳台也快塌陷了。