Q:History of Chinese machinery development

China in about 40 to 500 thousand years ago, there have been processing crude scraperschoppers and three prismatic tip like device primitive tools. 4~5 years ago appeared grinding technology, many stone tools have been relatively smooth, blade is also sharp, and has a single edge, double blade, convex blade, concave blade and round blade of the points.

Q:I wanted to be a petroleum engineer due to its high salary, but am unsure if it's worth it.Is it worth it? Is it fun?Aeronautical engineering doesn't have a salary as high, but it seems like a fun job.I am hard of hearing and wear hearing aids. I suppose both jobs would accept this type of person.Which of those jobs has a better hiring rate?

Petroleum engineers do not have any thing to do with the design of machinery. Their primary interest is the underground reservoirs that contain oil and gas. They can spend some time around a drilling rig but they do most of their work in an office. Having hearing aids should not be a problem in terms of employment. You need to realize that picking discipline for salary is the wrong thing to do for two reasons. One you should always work at something you enjoy and are good at. Two, just because a given discipline has a higher average salary doesn't mean you will be one of the engineers that earns that higher salary.

Q:What are the employment directions of mechanical engineering?

Employment direction: design, manufacture, scientific research, technical development and production operation management in the field of mechanical engineering. Automotive companies (Volkswagen, Daimler, Honda etc.) bus company (Jinlong, Yutong) engineering machinery company (Sany, Liugong, Xiamen railway transportation system etc.)

Q:why is heavy machinery called plant?

The origin of the word plant is the Latin word planta for sprout. The verb apposite to Latin planta is plantare meaning 'to drive into the ground with the foot'. Sense of a building planted or begun for an industrial process is first attested 1789 by using the word in the sense of implanted, rooted, anchored. Some times later the word plant for the place where heavy machinery was produced, was transferred to the machinery itself.

Q:What are the concrete construction machinery?

The steel bar bears the tension and the concrete bears the pressure. The utility model has the advantages of firmness, durability, good fire resistance, steel structure, steel saving, low cost, etc..

Q:Engineering engines use those engines as power!

The Cummins Engine Isuzu engine made in Japan produced in the United States now domestic DEUTZ engine made in Germany now with a variety of car engine

Q:Where do I find out the price of used machinery such as CNC mills, lathes, QVAC roller, Haas indexing head, etc...I am trying to purchase a small parts manufacturing business and I need to know how much would those machines cost now.ThanksZ

Call your haas factory outlet

Q:I'm pretty disturbed about this whole deal. So she doesn't have certain female components.. does that make her a man? Is that why she ran so much faster than everyone else in Berlin? Are men really that much faster than women? Do you think she knew?

But it's not the fact that she can't have children that makes her a question mark for her events. It's the fact that she has the chemistry of a man competing against women. It's not about one being more worthy over the other. It's the fact that testosterone makes you more able to build muscle and run quicker. It's a competetive advantage. However you look at it, I feel sorry for her having it drug into the public setting like it has been.

Q:no i cannot hear any machinery, no fans?

is that mean to be a joke ? only it's not friday yet!

Q:I am restoring an older , but good piece of machinery. It sat for many years, so it's really really dirty and showing some rust and paint wear. I do not want to wash it and get water all over it so it starts rusting the gearing, and tooling surfaces. What do you recommend to start getting this beast clean, so I can work on it without getting really, really dirty? Is there a spray or should I use something like ...WD-40? How about the chemical RESTORE they show on the $19.95 TV Ads??? Used to restore the faded paint on a car or clean the headlight lens from oxidation??

There are degreaser products, but those are fairly aggressive and intended for really gummy congealed lubricant removal. WD-40, while less aggressive, is still a pretty good solvent as well as a light lubricant. If you need a lot of it, they sell it in 1 gallon cans (and probably larger sizes for industrial use), and they have pump sprayers to use with that size. I think a product for use on headlights or faded paint would be more of a polish than a degreaser, so that would not be appropriate unless you're trying to clean up a plastic viewing window or some such plastic guard, shield, etc.