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61, A mathematic model for oxidation leaching of sulphide ore developed.

62, The deposit, refers to the stockwork sulphide tungsten deposit of porphyry type with associated gold which can meet the requirement of utilization.

63, The practice showed that the blast furnace slags mainly consisted of melilite, cuspidine, bivalent metallic sulphide and Ce-Ca silica.

64, Our study indicated that most of the silver in lead concentrate occurs in the form of coarse particle, unlocked particle, uncomplete dispersion, crust or radial shape of silver sulphide.

65, The results of composition analyses show that Ningcun china stone is mainly composed of quartz, sericite and feldspar; iron is contained in silicate, sulphide, oxide and hydroxide minerals.

66, A new route of using the mirabilite resources to produce alkali sulphide, and then derive o-phenylenediamine was introduced.

67, The mechanism of pyrogallic acid depressing sulphide minerals has been discussed by means of HMO calculation, interaction energy and energy band structure.sentence dictionary

68, They found hydrogen sulphide levels decreased in 80 % of Process Pipe.

69, As a especially effective collector for processing copper sulphide ore, methyl sulphonamide features good selectiveness and strong collection.

70, It will become to white zinc sulphide after absorbing sulfide in air to be poor at primary stainability.

71, The filming on steel using the disproportionation reaction of sub - sulphide of Al was studied.

72, In today's chemistry class, the teacher introduced the chemical components of hydrogen sulphide.

73, Cadmium sulphide or cadmium selenide in polymer based thin film transistor.

74, New technology of once sintering sulphide selenide cadmium base red glaze is researched.

75, Hydrogen sulphide bearing gas or water is postulated to be an important reductant in several areas.

76, The cleaner techologies include reducing salt pollution, low sulphide lime systems, carbon dioXide deliming.

77, Of steel, iron, aluminium, copper and rubber pieces together, sulphide.

78, And the sulphide mineral deposits lie directly on the sea floor.

79, Because the alkali waste mainly contains sodium sulphide, sodium carbonate and some organic matters, which restrict the comprehensive utilization of alkali waste.