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Through adjusting numbers of CBN grain, type and proportionment of adhesive agent, the tools materials toughness was improved.

According to the design goals, with reference to the pre-project research results [3], macroporous concrete without sand made of Mengdian brand 42.5R ordinary portland cement as cementitious materials, crushed stone in grain size 20-30mm as coarse aggregate.
Timely watering after planting, because of thin nutrition soil, increasing the number of watering encountered hot weather to ensure the survival rate of plants.

Impact toughness was carried out with a CYCJ-04A impact toughness tester (impact cycle number was 1000, at the frequency of 2000rpm).
Ichida, Mechanical properties and grinding performance of ultrafine-crystalline CBN abrasive grains, Diamond and Related Materials. 17 (2004) 1791-1795

The corundum is made in Henan, and we choose two grain size shown in Table 2.
Its particle size is 400 mesh numbers.

Mix compositions were prepared taking into account the grain size distribution of raw materials, i.e. the grading curves.
Finely dispersed pozzolanic additives play a significant role as microfillers and supplementary cementitious materials, decreasing the number of fine pores and increasing compressive strength of concrete up to HPC data.

U1t=N2SmdJdt+N2S2∙μ0dHdt (3) U2t=N2S2∙μ0dHdt (4) Where N2 : number of turns in the secondary and compensating coils, Sm : material cross sectional area and S2: total cross sectional area.
Figure 4 shows hysteresis loops from a strip of Fe-(3%wt)Si or M130-27S grain oriented electrical steel.

At the same time, polystyrene particles decompose at the high temperature to leave a large number of closed porosity with pore size 2-3mm, which make the red mud sintered brick has good thermal insulation performance.
The fine particles with high solubility and the convex portion of the general surface of the particles are dissolved into the liquid, and transfer through the liquid phase to another surface of the coarse particles with low solubility and settle down, until the grain growth and body pyknotic[4].

Introduction The production yield of superalloy precision casting part is 20%~30%, and for the complex shape part this number comes to only 10%.
Domestic researchers have carried out the investigation on equi-axed grain and parts of directionally solidified superalloy, and also have got some progress.

Analysis of a number of the microprisms shows that the average length and diameter of these microprisms are about 12 and 5 μm, the uniformity of size distribution of the product is well.
Another NaYF4 crystal nucleus shrink to disappeared, then grain fall off, turn to hexagonal prism crystals [9].

Applications that require fine-grained event notification can place hooks in the User VM that send hook events to the Security VM.
This struct contains a unique identifier for the request and information about the hook event (e.g., hook number, associated Windows handle, or process id).