roadways造句
Application of prestressed rod in roadways
The surrounding rocks of arched roadways are much more stable than that of rectangular roadways.
Similarity simulation on the stability of roadways under mining
A tentative study on fault traversing roadways and the design method for water separation coal pillar
Bridges will be down, roadways torn, the atmosphere so volatile that planes cannot be safely lofted.
Other factors that may affect dam selection are roadways, fishway, locks, and log passages.
Wire mesh covers the ceiling to prevent big pieces from falling into the roadways or hitting miners.
The supporting design of mine roadways is reasonable or not directly influences mining-drifting balance, economic efficiency and safety production.
Study on the affection of roof crevice water to the stability of mining roadways supported by cable bolts
He says cities, counties, state governments and state highway transportation agencies are planning the roadways of the future.
The main roadways and important houses in the village are also equipped with defensive doors and walls with gunholes.
Through simulating the roadways of stopping line, it analyses the character of deformation failure of surrounding rocks under the conditions of non-mining and mining.
Heavier steel products, such as plate, I beams, Angle iron, pipe, and bar, form the structural frames of buildings, Bridges, ships, automobiles, roadways, and many other structures.
The shrink quantity, theory value and test result of retaining roadways along goaf are the same, this shows the exantness of the mechanics model.
Esso Research and Engineering Company has already devised a system for clearing urban roadways that is reported to be cheaper than under-pavement steam or electric coils.
According to the request of double driving roadways of Sihe Mine Jincheng Anthracite Mining co. Limited, the paper researched and developed continuous transport system.
A six-month pilot trial in Eindhoven last year showed that 70 percent of users changed their behavior as a result of pricing, by traveling either at off-peak hours or on less crowded roadways.
The rock in the fault zones in mine roadways are generally fractured and difficult to support. As they often connect with the water containing layer, water inrush is apt to occcur.
The spine splits and splays from one shore along the central void position, diverging under the road decks to the outside of the roadways at the other end of the bridge.
This would allow users to choose the least-crowded means of transport between two points — an application feature that has already been implemented on roadways by some GPS devices.
While the image is not detailed enough to see damage to individual buildings or roadways, some indicators of earthquake damage are visible, especially in the large version of the image.
According to the features of the sink holes exposed in th e mine roadways of the north part of Anhui Province,there were two different ty pes of geological modes for the water conducted sink holes set up. The water inru sh risks were quantitatively predicted with FEM software.
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