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filling wide strip full-pillar extraction filling the gob the first stage wide strip mining the second stage Fig.1 The step of Full-pillar extraction by filled wide working face layout in strip mining Full-pillar extraction by wide working face layout in strip mining decreases the number of working face and makes the implementation difficulty lowing.The reasonable control of the ground deformation and filled effect in the first stage is the key to promise the second stage successful mining.
Their grain size must be less than 5mm in order to ensure liquidity.Mixing equipment can be on the ground or underground according to compaction and scene situation.The stowing process is that stowing roadway layouts parallel to working face gate road and lags behind a distance, drilling and installing stowing pipeline from stowing roadway to the gob, the end of pipeline must be located at the top of gob in order to stowing gaps as shown in Fig.3.The filled body compress subsidence.

To achieve the metallization of textile materials, a number of approaches have been developed, such as vacuum deposition, ion plating, electrolytic coating, and electroless plating [1,2].
Compared with Fig. 5(b), the surface of PET/PANI-Ag obtained under 45 oC showed was rougher and its grain size became bigger.

As shown in figure.2(A,D),active components appear the agglomeration phenomenon, respectively, and grain growth decreases the surface area which affects its activity.
The high temperature (HT) peak is related to the number of Bronsted acid sites.

However, despite a number of advantages of technology, the production of thermo wood is still limited by a rather small amount of installations the production capacity of which is 5-10 thousand m3 of wood a year.
Grinding of the samples was made on a grinding rack with the help of the Red Wood sanding belt (Bosch) by the sizes of grinding grain 40, 60, 100, 120 mkm.

Largely, correlations are utilized to reduce the number of input data.
T.: "Formation Grain Size Prediction Whilst Drilling: A Key Factor in Intelligent Sand Control Completions," SPE 56626, (1999) [6].

In this equation, S is Cu0 surface area,is chemisorption stoichiometry at monolayer coverage, m is the mass of catalyst, NA is Avogadro constant, V is the total volume of N2O decomposed, Vm is the molar volume, and N is the number of copper metal atoms per unit area of surface (1.47×1019 m-2).
Catalytic activity The dehydrogenation of SBA towards MEK was carried out at atmospheric pressure in a downflow fixed-bed reactor. 1g of the catalyst was charged into the reactor and supported on a quartz grains bed.

Howerver, while Ce3+ doping concentration is too high, Ce3+ and Tb3+ compete in the crystal lattice of the matrix, this leads of the number of Tb3+ luminescence centers reduction and increase of the phosphor luminescence intensity.
Phosphor sample has low luminous intensity as the calcination temperature is relatively low at 600˚C.The reaction gradually complete with calcination temperature increasing, crystals continue to grow thick and crystal's internal crystalline improved, the smaller grain agglomerate into particle.

Experiment Sample in this experiment is composed of diamond in average grain size of 100μm and concentration 200%, and low temperature vitrified bond (Table1).
Wetting agent number Wetting agent 1 Sodium silicate：Sodium silicate is mixed with water in density of 1.13g/cm³. 2 Phenolic resin solution：Resin was mixed with anhydrous ethanol in mass ratio of 1:1. 3 Dextrin liquid：Dextrin was mixed with water in concentration of 30%.

A pure Cu2O film can be produced at a low pressure of 0.5Pa due to the insufficient particle number and nonavailability of sufficient oxygen. 10 20 30 40 50 60 70 80 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ (311) (220) (200) (111) (110) Cu2O Cu2O Cu2O Cu2O Cu4O3+Cu2O 2θθθθ (degree) ▼□ □ □ □ ▼ Cu4O3 Cu2O 8sccm 7sccm 6sccm 5sccm 4sccm Fig.3 XRD patterns of copper oxides films for various oxygen flow rates.
The UV-Vis transmittance spectra of these films are composed of two absorption peaks attributed to the smaller grain size of the samples

The more precisely heat can be introduced into the component, the lower the number of sunk spots and the less component warpage occurs [7].
In the outer and inner bent area, micro-structural changes resulting from stretching and compressing the grain structure can be observed.