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31. The design and realization of automatic detecting system for oil field gun perforator resistance of ultrahigh hydraulic pressure and high temperature are discussed in this paper.

32. There are capillary pressure permeability, hydraulic pressure permeability, and ion permeability(or concentration difference) on the basis of driving forces of concrete permeability.

33. In this thesis, ZG35CrMo valve body was mainly studied. The pipeline valve body should pass hydraulic pressure test for 70MPa.

34. Air pressure, hydraulic pressure or electrical supply available to actuator.

35. Operational principle of the hydraulic pressure system and each oil line system are also detailed.

36. The complete size grading concrete was loaded by hydraulic pressure servo system in the test equipment.

37. All components in hydraulic pressure and electric - control system have common and interchangeability makes the replacement easily.

38. This product is suitable for the arm support rotary hydraulic pressure system in digging machine, crane, pumper and concrete pump truck, etc.

39. It mainly includes a hydraulic pressure main engine, a stripping power supply, a male die, two female die composite units together with a lining board and a parison push-out mechanism.

40. This article introduces the function and application of hydraulic-controlled back pressure butterfly-shaped valves,[sentencedict.com] and takes an analysis and detection on hydraulic pressure system.

41. Design the signal adjust circuit for sensor, and the power amplification circuit for the hydraulic pressure system of test platform and the controller of magnetorheological dampers.

42. Main products: vessel gear case, hydraulic pressure clutch, hydraulic pressure double and branch driver, timing clutch, reducer, vacuum pump etc.

43. The hydraulic pressure clay gun is smelts iron one of blast furnace important equipment, may facilitate stops up the taphole, in order to next smelting.

44. Obtaines optimal cleaning parameters like length, diameter of flush water outfall, air pressure, hydraulic pressure of different diameter pipelines.

45. This article narrate the fundamental rule of valve control system, and propose one kind of hydraulic pressure drive valve control system scheme. Have reference value.

46. In order to guarantee the needs of the entering strength, we select hydraulic pressure sliding table.

47. The drop forging hydraulic pressure confidential uses the mold, but the free forging hydraulic press does not use the mold.

48. This standard applies to the hydraulic pressure motivation the tractor,[http://sentencedict.com/hydraulic pressure.html] through pipe fittings often join and disconnecting means deliver the connect to machines and tools.

49. The foundations of these high dams are crack rocks, after big reservoirs impounding, high hydraulic pressure will be put on the crack rocks, and can they bear the high pressure?

50. A die casting die with pumping crossed cores by crossed compound dog-led cams and hydraulic pressure is used for cupulate parts with inboard concave.

51. One type is self-contained, with all hydraulic pressure applied to the pitman arm shaft.

52. And have soft water cooling system, the upright hydraulic pressure quenching machine tool assort that.

53. The electricity consumption of oil pump of hydraulic pressure system accounts for 80% of that of the whole plastic injection molding machine, so it is crucial to lower the electricity consumption.

54. Use folding wing structure and hydraulic pressure rubber tire to transport, with wide coverage, reasonable structure ability to rake; easy to use and maintain, etc.

55. Current hydraulic pressure grab distributings in light of, basically center in foreland and national major project.

56. Because this coal bed thickness is moderate, selects the shield type hydraulic pressure support.

57. The lifting mechanism after optimization features better characteristics curves of lift force factor and hydraulic pressure.

58. This paper introduces the design of sample axis in the process of machining axis spare parts with hydraulic pressure copying lathe.

59. A dynamic compensation hydraulic pressure servo valve zero drift method is disclosed.

60. Being an important functional element, the performance of the hydraulic pressure gear motor affects the system operational performance and its application development.