The numerical results of water jet breaking rock agree with the experimental conclusion. A valid approach to the process of water jet breaking rock sh...

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The mathematical models for overall breaking process of circuit breaker are developed, through which the driving mechanism and the arc chamber, the interruption performance and the opening velocity are closely connected, the breaking process under different interrupting conditions are simulated, then the arcing time difference is determined. The interrupting conditions include line charge current, breaker terminal fault current and short line fault current .

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The methods of chip-breaking in machining pipe thread were researched deeply, which are classified into two categories: the methods acting on tools and adding auxiliary devices for chip-breaking. The principle of work, the technical characteristics, the advantages and disadvantages, and so on were analyzed, compared and summarized, and the following research directions were also pointed out.

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You can't have omelettes without breaking eggs, and I have no doubt that the omelette which eventually emerged justified the breaking of a good many eggs .

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I am so sorry to note some nonsenses above just like breaking wind,i conbined my thought about"phenomena and contradictions"from realities and games,if i makeu depressed,then breaking your home windows.

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In a design of square,regressive and orthogonal rotation with five factors,a field trial was conducted using Toona sinensis.This sdudy was undertaken to investigate the effects of gibberellic acid(GA3), 6-benzy laminopurine, thiourea C.P.(NH2 2CS, Zinc Sulphate(ZnSO4), sa!tpeter(KNO3) for stratification on the dormancy-breaking of Toona sinensis,and to explore a more effective dormancy-breaking method and its mechanism.

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The test sample of 550kV 50kA single break dead tank circuit breaker fulfilled dielectric test, capacitive current breaking test and short-current making and breaking tests etc in China national high voltage quality supervision testing center apparatus and KEMA high power laboratory in Holland.

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Currently we are not only a producer of different types of breaking and filtering machines but also a general contractor of construction project for stone supplying,breaking and filtering systems.We also provide customers with complete service from workmanship design,equipment selection,equipment manufacturing,installation and matching equipment manufacturing.

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The wash-out of the particle slope, in practice is how the particle stone to move under the breaking wave"s force. The main elements deciding the force are the wave factor, the slope angle and the particle size. Through analyzing the particle"s suffering process during each stage of waves breaking, it can be advanced that the wave force is biggest just at the wave incidence to the slope.

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