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Steam, gas, electricity, telegraphy, wireless, the automobile, the aeroplane-each opens up possibilities of new worlds yet to come.

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If this was an American craft, we should blow up, perhaps, but we should at all events go fction of steam and sail the vessel made rapid progress along the coasts of Anam and Cochin China.

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The lubricating oil that our country produces reachs quality to go up in breed as bigger as foreign difference, the country already decided to promote high school high-grade lube scale, oil of rapid development multistage and steam bavin aircraft are general at the same time lube.

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If you go to the other side, to the Borean Tundra, the Alliance comes into a giant Alliance stronghold, with a brand new leader that we're building up - and a massive Alliance steam ship.

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Steam hammers up to 1880 when replaced by cogging mills.

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In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

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Therefore can pass to use the cupric sulfate sulfuric acid potassium for the catalyst take sulfuric acid as to carry the body to digest it, make the amino acids chelate match the conversion for dissolve sex easily of ammonium sulfate and white vitriol, then absorb a fixed amount to try the kind to join 40% sodium hydroside combine under the steam heat function make ammonia the spirit swims to leave out, through cool off to respond the born boric acid with boric acid, be got the total nitrogen content by the standard aqua titration of hydrochloric acid immediately after;But the white vitriol can immediately join the hydrochloric acid hydroxylate , fluoride to turn the in order to cover up, carry on the titration but get the content of its zinc with the EDTA mark liquid..

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