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

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。

Determing bias stress of reinforced concrete and size of basal bottom of single foundation by direct calculation

采用直接计算法，确定钢筋混凝土偏压单独基础基底尺寸的问题

Based on this calculation, checks the soil anti-heave in the bottom of foundation pit using the stability analysis theory of the second chapter.

在此计算基础上，运用第二章稳定性分析理论对其进行了基坑底部土体抗隆起验算。

Moreover, for the case of two foundations, the distribution of shear stress acting on the bottom of foundation is no longer symmetric about the centric line of the bottom surface.

另外，对于两个基础的情形，作用于基础底面上的应力分布不再关于底面的中心线呈对称。

The calculations demonstrate that sliding occurs between the bottom of foundation and the soil, while sliding and separation occur between the side of foundation and the soil.

计算表明，基础底面和土体发生了滑移，基础侧面和土体之间发生了滑移和脱离；

The bottom of a connecting rail is provided with a plurality of notches for increasing flexibility.

为了增加柔性，在连接轨底开有若干处切口。

According to the beneficial influence of superelevation to the flatcar bottom raised from rail surface, it is advised that the suitable superelevation ( 20-30) mm is necessary in the minimum radius curve negotiation.

根据超高对车底轨面高度抬高的有利影响，建议在最小半径曲线通过时应当有适当的超高量（20-30）mm。

The wearing and loss failure often occur between the two matching faces of the self-locking mechanism and the rail, which also happen to the faces between the large-scale component's bottom and the rail's upper level.

传统滑移施工常常发生自锁机构与轨道接触面的磨损失效，以及大型构件与轨道表面的磨损失效，往往造成滑移部件的严重损耗。

Design of Dust Removing System to the Electrical Equipment at the Bottom of Light Rail Vehicle

轻轨列车底部电器移动式除尘系统设计

Sometimes, if you stand on the bottom rail of a bridge and lean over to watch the river slipping slowly away beneath you, you will suddenly know everything there is to be known.

有时倘若你站在桥最下面一根栏杆上，弯腰看河水从你身下缓缓流过，你会突然顿悟一切。

The load cell can also be moved up and down the length of the bottom rail.

负载细胞也可以提出向上和向下的长短，底部的铁。

The model number can be found on the bottom rail.

产品型号位于围栏底部。

Sulfide further accumulates where depressions in the bottom of the sill interfere with the flow system and act as natural riffles.

岩床底上如有陷穴，就起到天然溜槽的作用，干扰了岩流体系，使硫化进一步堆积。

And the test data, the above factors taken into account based on the bottom of the sill or flow dissipation stilling basin shape optimization.

并结合试验资料，在综合考虑以上影响因素的基础上，对跌坎型底流消能工消力池体型进行优化设计。

The results of the simulation also show that it is not suitable to install bottom sill or bottom slope in the project which have side-inflow forebay for improving the flow pattern.

同时计算亦表明，对于闸站合建枢纽此类侧向进水流动，底坎、底坡整流效果不大。

In this paper, a new test technique named Hawk Eye ⅱ bottom hole view system in order to apply to complex well hole work is represented.

为适应复杂井况作业，采用了鹰眼Ⅱ井下视像系统测试新技术。

A Summary of Hawk Eye ⅱ Bottom Hole View System

鹰眼Ⅱ井下视像系统简介

To close the bottom view, click Remove split on the window menu.

若要关闭底部视图，请单击“窗口”菜单上的“取消拆分”。

The last photo shows a bottom view to show the motor.

上次的照片显示，一个由下而上的检视以显示汽车。

Influences of bridge building on bottomland evolution in rivers

建桥对河流洲边滩的影响