Search results for keyword: horizontally
Drilling machine operating procedures
Lathe Operation Procedure
Lathes are powerful and versatile tools used in a variety of machining tasks. To use them safely and correctly, you must understand the basic lathe parts and follow a procedure for performing each job. The following attached procedure applies to engine lathes of various ......
1055 
Avery
pile foundation
Pile Foundation
Pile foundations are deep foundations that are embedded deeply into the ground in order to provide adequate support to structures. Pile foundations are used in construction projects such as bridges and buildings. The pile foundation is suitable where the soil has poor bearing capac......
Underground Mining Method Design
Underground Mining Methods
Introduction
Underground mining is the process of extracting minerals and ores from underground. Underground mining has been around for centuries and though the mining techniques have changed drastically over the years, the idea is still largely unchanged. Underground ......
trapezoidal jig
This is a literature review of a Trapezoidal Jump Eliminator, otherwise known as a Threshold Eliminator. The purpose of this paper is to understand the design principles behind the Trapezoidal Jump Eliminator, and to determine the effectiveness of the Eliminator in controlling the accumulation of ......
Mill liner
Grinders are machines that can be used to grind materials down into finer particles. Grinder plates, also known as grinder liners, are an important part of this process. They fit in the hopper of the grinder and help to break down and crush material before it is sent through the rest of the grinde......
Magnetic field characteristics of plane-single-tooth pole pair
Introduction
The magnetic field of a single-pole magnet is often likened to the one-eyed person in the proverbial room—you cant ignore its presence. Such a simple device presents complex behaviours that depend on the material, shape, size and orientation of the object. Magnetic field distributio......
crack theory
, 关于Wegeners Continental Drift Theory
Wegener’s Continental Drift Theory, first proposed by German scientist Alfred Wegener in the early 20th century, proposed that the continents had once been joined together and had since moved apart, an idea that contradicted long-held popular beliefs. Wegene......
Well construction upgrade
Building Safely in Confined Spaces
Each year, numerous workers are injured or killed as a result of working in confined spaces without the proper safety measure in place. Confined spaces can pose numerous risks for workers, including the risk of being exposed to toxic and flammable gases, potenti......
Strip foundation
DNA Barcoding
DNA Barcoding is a method of species identification that uses a short nucleic acid sequence from a gene region that is standardized for all species. It is an effective, accurate, and affordable way to precisely identify a species from any biological sample.
DNA Barcoding works by c......
Horizontal transportation for shaft construction
Level transportation in shaft and side drift construction
Shaft and side drift construction, also known as tunnel driving, is a mode of construction that excavates and constructs a tunnel by digging out a large hole geological structure in the direction of the transportation route. Level transpor......
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