Random good picture Not show

31 For improving need assembling the casing head, the cutting casing pipe on project, we have designed the device of cutting casing head to change unfavorable factors using acetylene gas to cut case.

32 Acetylene is a flammable gas stored in cylinders as a dissolved gas.

33 Acetylene is a simple asphyxiant and anesthetic. Experiments have shown there to be no harmful effects from chronic exposure to acetylene at high concentrations.

34 The work took cutting machine use raw materials for inflammable gas e. g. acetylene, propane, gas, such as liquefied petroleum gas (LPG).

35 The process conditions of acetylene catalytic oxidation for producing oxalic acid was studied.

36 The comparative study of these catalysts for the hydrochlorination of acetylene is described and the deactivated reason is discussed.

37 Chromium treatment significantly decreased nodule numbers, nodule fresh weight, leghemoglobin content and nitrogenase(acetylene reduction)activity per plant or per gram of nodules.

38 The property and characteristics of several kinds of pressurization equipment in the pressurization and lustration procedure of acetylene were compared.

39 Acetone is the solvent which will dissolve the acetylene gas charged into the cylinder.

40 The causes of fire and explosion at dissolving acetylene station was analyzed.

41 The utility model relates to a multi-purpose gun for flame cutting of oxygen gas and acetylene gas.

42 In most cases, it is best to allow a burning acetylene cylinder to burn itself out.

43 Thecoating is made by using an oxy - acetylene flame spraying process.

44 The status of VCM and acetylene gas recovery by pressure swing adsorption in vinyl chloride production units were introduced.

45 ATP binding sites are regulatory sites in the nitrogenase and the acetylene reduction active sites are catalytic sites in the nitrogenase.

46 In the darkness, the machine gun spat a vindictive white light like an acetylene torch.

47 In a corner of the caf é, an acetylene lamp gives a flickering light.

48 Heated with water decomposition of acetylene gas and calcium hydroxide, and the evolution of considerable heat.

49 A simple and practical welding technique , the oxygen - acetylene welding technique, for Zn - Al alloys is recommended.

50 Medium - pressure acetylene drying equipments adopt two - stage drying process.

51 The research on engineering application of producing acetylene through coal pyrolysis in plasma reactor is important for its industrialization.

52 The expansion graphite replaced acetylene black as electrical core material in dry battery.

53 NMP is widely applied to aromatic hydrocarbons extracting , acetylene ,[www.Sentencedict.com] and diolefine purification.

54 "Having about a per cent of acetylene is potentially interesting from the life point of view, " says team member Jonathan Lunine of the University of Arizona in Tucson.

55 Acetylene is manufactured by the reaction of water with calcium carbide.

56 Soybean flour is suspended in 0.1% agar sol, instead of being digested or ashed, and injected into air acetylene flame by standard addition method to determine magnesium.

57 Coal pyrolysis to acetylene in thermal plasma provides a direct route to make chemicals from coal resources.

58 The catalytic performance was evaluated during the selective hydrogenation of acetylene to ethylene. The properties of alloy were characterized by TEM and TPD.

59 Abstract: This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals.

60 In 1968, the plant began to liquefied petroleum gas ( LPG ) instead of acetylene cutting.