Then the bottom fell out of the market."

The test results show that, the flexural fatigue strength of polyacrylonitrile fiber reinforced concrete beams with bottom layer steel fiber is larger than the plain concrete 15.7%;

研究证明：底层撒布较长钢纤维的聚丙烯腈纤维混凝土梁的弯曲疲劳强度比素混凝土提高15.7%；

Measures to Thoroughly Solve Leakage at Bottom Flange of PLG Spherical Tank

石油液化气球罐底法兰泄漏的根本解决措施

Parameter Analysis of Bottom Flange Thickness of Main Girder with Box Cross Section Used in Cable-stayed Bridge

斜拉桥箱形主梁底板厚度的参数分析

Study of local bending stress in bottom flange of ⅰ-beam crane rail

起重机工字钢轨下翼缘局部弯曲应力的研究

Yielding analysis of the steel beam bottom flange has some influence on the deflection calculation of composite beams.

钢梁下翼缘屈服对组合梁挠度计算有一定影响。

Manufacture Technology of Diversion Bottom Outlet Radial Gate of Three Gorges

三峡导流底孔弧形闸门制造技术

Structure Improvement of the Burning Bottom Layer Fan Gate

烧结布料铺底料扇形闸门装置结构改进

The modified technology improved the temperature field and fluid field of liquid steel in arc furnace, decreased the etch of bottom and gate of furnace and intensified the whirl of surface of liquid steel.

该项改进的技术改善了电弧炉内钢液温度场和流场，减少炉底和炉门局部侵蚀，加强钢水液面的旋转。

Study on vibration of bottom outlet gate for Three Gorges Project by hydroelastic model

三峡大坝导流底孔闸门流激振动水弹性模型试验研究

We also find that SiN_x, used as the gate-insulator-layer of the bottom gate TFT, can increase ( by about 20%) the crystalline volume factor ( Xc) of μ c-Si thin film deposited thereon.

同时又发现，以sin x为栅绝缘层的底栅TFT，对随后生长的硅基薄膜有促进晶化的作用（约20%）。

Three plane gates, including the middle, low and bottom gate, are provided in the conveyance shaft, and connected by telescope joint-type hoist rods which are capable of being lengthened and shortened.

在输水竖井中设有中、低、底3扇平板挡水闸门，由可伸缩的套接式拉杆连接；

The flat bottom gate provides full perimeter seating against the seat, eliminating pocket in the bottom of the seat that can trap process media and prevent the valve from fully closing.

平坦的闸板底部与阀座之间能够实现全周长阀座密封，避免阀座出现可能淤积流体介质、妨碍阀门完全关闭的底部洞隙。

The authors, by means of safety testing and measuring as well as checking calculation for the bottom gate, discovered safety hidden trouble in gate system, and put forward the suggestion of treatment.

通过对底孔闸门的安全检测及复核计算，发现了闸门系统存在的安全隐患，并提出了处理建议。

Therefore, while depositing μ c-Si on SiN_x to fabricate the bottom gate TFT, this effect must be taken into account.

沉积底栅TFT的微晶硅有源层时，必须计入该影响。

The design of the bottom intake height of SHALLOW-DUG well in thin aquifer

薄含水层中大口井井底进水高度的设计

In the paper, it is introduced that the construction method and experience of seepage control by the double-pipe method of high pressure jet grouting to seal the bottom of dock foundation of a shipyard in Burma horizontally.

该文介绍缅甸船厂坞口基坑采用高压喷射灌浆二管法水平封底防渗施工方法和经验。

The main characteristics of high building especially the super high building are the height is high, the center of gravity is high, the pressure of the bottom of a foundation is big and the depth of the foundation is big.

高层建筑尤其是超高层建筑的主要特点是高度大、重心高、基底压力大及基础埋深大等。

The numerical results show that the energy of vibration decreases to 2% of the original one when it transfers from bridge deck to the bottom of pile foundation.

数值计算表明，机车荷载下，振动能量由桥面到达桩基底部时为原来的2%左右。

To prevent damage from repeated freeze-thaw cycles, the bottom of the foundation must be Below the frost line.

为了防止反复冰冻解冻循环的损害，地基的底部必须在霜线以下（此处的土壤不受地表冰冻的影响）。

The widened section, usually concrete, at the base or bottom of a foundation wall, pier or column.

被加宽的部分，通常是混凝土，在基础墙壁，柱桩或支撑柱体的基础或底部。