The developments in ground support practices that have accompanied greater productivity, larger excavations and larger equipment are especially well-illustrated in the paper by Neindorf (2004) describing the evolution of ground support practices at the Mount Isa mine over the past 30 years.

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What is Shortener url?

As the name implies, shortlink or is a short link. Usually these shortlinks are provided by most advertising-based companies, such as and much more. Shortlink own point to shorten a link or url, be it a download link or url to a particular website. For what? of course for easy to remember. For example, I have a link "http: //yoursite*.com/profile.php?", now I ask, are you easy to memorize the url? there is a once read already memorized and also there are many times read not memorized. Now I try to shorten the url into which is shorter and easier to know even though it is a bit complicated, you can customize the shortened url Shortlink or url shortener is very easy to use by its users, because you do not spend a bit, even you who get money.