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But this China seller's X301B has an additional screen on top of the Electroscope's model 301? Is this a copy one or an original Electroscope?
Look forward to your comments.
Thanks and Regards,
George
I suspect it's an original.
Unless you can buy a secondhand one ultra-cheap, for interests sake only, I would keep your money safe from the wallet miners.
What kind of big machinery is that??
About how much it would cost?
The hole could be dug by hand if there are no big rocks in the way, but that would take a long time and require buckets tied to a rope to remove the dirt, and ladders to climb out of the hole.
The easy way is to use a back hoe or excavator. The backhoe is probably best because it has a loader on the front to move the dirt pile out of the way as you dig it from the hole. In order for a backhoe to dig down 10 meters, it would need to first dig a hole big enough and deep enough for the tractor to drive into as it digs deeper toward the target. This is because most backhoes cannot reach 10 meters down from the surface. The most they can reach is maybe half that amount for a large backhoe. So they must dig a large hole with a ramp to drive into and out of as they continue digging down.
You can buy a good used backhoe on ebay for 15,000 to 30,000 USD on ebay. Or you could rent one for a day at a cost of about $300 to $600 including pickup and delivery if the distance is not too far from the rental yard. The bigger the backhoe, the faster the digging will get done. Small backhoes work too, but may take several times longer than using a big one.
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