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61, The general formula, cation site occupancy and its coordination number in the structure of tungsten bronze niobate crystals are discussed.

62, Cerium - tungsten and AIN ceramics pieces with high density were obtained by the hollow cathode plasma sintering.

63, Cast tungsten carbide powder is silver grey in outward appearance and multi - prism spray weldingspray coating.

64, To ensure the purity grade and flow rate of shielding inert gas, to use tungsten electrode activated with nanosized thoria are two better ways to decrease the erosion rate of electrode.

65, A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho -tungstate in hydrogen.

66, The samples of tungsten carbide were prepared from the blue tungsten trioxide and the ammonium paratungstate Separately.

67, Along with the oil prospecting and production, the existent drilling bit (steel and tungsten carbide tooth bit) was not effective in some complicated stratum.

68, The fabrication, hot-working and applications of tungsten and tungsten alloys are summarized both domestic and overseas.

69, Mineral exploration made important progress in . coal, uranium, iron, gold, silver, copper, nickel, zinc, lead, antimony, tungsten, molybdenum, vanadium, kainite and characteristic non-metal .

70, By using computer tomography (CT) instrument, the X-ray shielding property of nylon 6 composite with high tungsten concentration was investigated.

71, However, in view of plasma confinement and its boundary gas recycling, the investigation on the gas desorption behavior of plasma facing material for tungsten coating is very important.

72, The heating mechanism of hollow cathode effect plasma sintering cerium - tungsten alloy adobes are researched.

73, In addition, no XANES and UV-Vis characterization studies about the coordination of the surface tungsten oxide species on silica have been reported till date.

73, Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.

74, The bremsstrahlung generated by the electron beam impinging the tungsten target and the interactions between the X-rays and the materials were simulated using the MCNP4C code.

75, Method of determinating of tungsten trioxide in artificial scheelite is described.

76, The process of the crystalline mother solution, ammonium paratungstate (APT) , through the macroporous strong-base resin D296, and the recovery of tungsten and ammonium chloride in it are studied.

77, Even with the air pumped out the bulb, the tungsten filament slowly vaporizes.

78, A series of cobalt platinum tungsten alloys were deposited with sodium tungstate and cobaltous sulfate as the main salts and citrate as the complex agent.

79, At the same time sales agent with tungsten carbide alloy PCB - drilling.

80, Properties of fine tungsten powder and fine tungsten carbide powder from violet tungstic oxide are studied. The result shows that the process of v...

81, Studies on the spallation behaviour for 93 tungsten alloy have been performed witha compressed gas gun and a manganin piezoresistance gauge technique.

82, The temperature field in welding HAZ was studied and analyzed. Welding heat curve was set up by argon-shielded tungsten arc welding experiment.

83, This Paper introduces the method of staining on dissolving tungsten ore test and its theoretical principle.

84, Electric arc burns stability, remove tungsten consumption and assuring welding quality the workpiece cleaning function.

85, Single crystals of sodium tungsten bronzes with cubic perovskite structure were grown by fused sale electrolysis. The crystals have a metallic conducting behavior.

86, The tip of specimen for FIM analysis is prepared by "thin layer" electropolishing. A Clean tungsten tip about 500 A radius was prepared.

87, It is described a filter (300) for at least partially compensating for an X-ray tube (10) the target angle heel effect and preserving the tungsten spectrum of the X-rays.

88, The reason why tungsten wire is easy to break in the silicon thin film deposition process by hot wire deposition method was explained.

89, The floatation tungsten concentrate is treated by acid pickling to remove phosphonium and carbonate, and its final concentrate is 70.

90, Paris Expo, at the Edison invented produced by the tungsten filament incandescent lamp.