What's the name of the express miner
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Model discharge port
(wide) × High) maximum feeding particle size
(mm) reciprocating times at the bottom
(times / min) feeding capacity
(T / h) power
(kw) overall dimension
(length) × wide × High) weight
(kg) 600 × five hundred thousand and six hundred × 500 600 × 500 205 38.9 10.5－25.5 4 2750 × nine hundred and ten × 855 1054 980 × 1240 980 × 1240 350 23.7 36－90 7.5 3560 × one thousand × 1070 1700 1000 × 1900 1000 × 1900 300 27 300 7.5 3900 × one thousand five hundred and ninety × 1340 2691
China University of mining and technology and Beijing University of science and technology are the best schools for these two majors. I don't know which province you are from. If you are from Shandong, only Shandong University of science and technology is the counterpart, because the predecessor is Shandong Institute of mining. Of course, good university mechanical design professional can.
Hinged arch, double hinged arch and triple hinged arch are the three basic forms of arch bridge. The basic structural formula can be seen in the following figure
the main stress mode of arch is pressure, and there are shear force, tensile force and so on. Therefore, the stress analysis of pressure is generally given priority to, and the stress under vertical load is considered
triple arch is the simplest form of arch bridge, in the mechanical principle, its degree of freedom is equal to 0, so we can use the method of theoretical mechanics to calculate the stress of two arches. Under the condition of uniform vertical force, the optimal structure of constant section arch is parabola
In mechanical principle, the degree of freedom is - 1, which belongs to statically indeterminate form. Under the condition of uniform vertical force, the optimal structure of constant section arch is catenary In the mechanical principle, the degree of freedom is - 3, the statically indeterminate constraints are more, and the calculation is more complex. Hingeless arch is a part of reinforced concrete diagonal strut arch bridge structure. The two ends of arch ring are fixed on the abutment (pier). The structure is the most rigid and the deformation is small. It is more economical than hinged arch; But the abutment displacement, temperature change or concrete shrinkage and other factors will have adverse effects on the arch force, so the construction of hinged arch bridge requires a solid foundationYou need to destroy the meat mountain, the new Three Kings (hard long straight, mechanical skeleton, twin magic eyes), get the sacred ingot to make the sacred pick, and finally take the prospecting potion to dig the Yelv mine underground in the jungle. Yelvkuang can also be planted by itself, either way
The following conditions need to be met for Yelv ore proction:
1. There are silt areas in the map of the lower part of the player's jungle
2. Players defeat "meat mountain" and enter a difficult world
3. After the player defeats the mechanical three kings and completes the map transformation, the jungle will refresh the Yelv mine
note: Yelv ore is proced in underground jungle. Once it is placed in the mud, it will grow and replace the surrounding mud blocks to become Yelv ore under suitable environment
only seven mining tools can reach 200% of the mining capacity, and four of them need green ingot or mushroom ingot (made of green ingot), which means that the first choice for mining green ore is to use holy pick, holy drill and chain saw pick
points for attention in planting Chlorophyte:
1. In enough depth, Chlorophyte slowly assimilates the adjacent silt into Chlorophyte, which is called "growth"
2. When enough Chlorophyte exists in a certain range, the silt in that range can not be assimilated, that is, "Chlorophyte has upper density limit"
The upper limit of density is not constant, and its value is related to altitude. The maximum density limit is at the bottom of the cave layer and hell. At this time, the maximum density limit is every 38 × There are 24 chlorophylls in 38 The growth of chlorophyllase was not related to the brightness The growth of Chlorophyte was not related to the environmentif there is no reminder, it will be troublesome, If you have many friends who don't know which day they will upgrade, they can't be robbed after expiration. If you don't close the reminder box, you can click dynamic to tell you which friend has upgraded. There is a red envelope in the lower right corner, and you can grab it by clicking