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| 41. | Single-acting actuator converting pneumatic pressure to equal hydraulic pressure or vice versa. |
| 将气压转换成相等液压（反之亦然）的单作用传动装置。 |
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| 42. | middle or high pressure hydraulic element |
| 中高压液压元件 |
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| 43. | constant pressure hydraulic power steering gear |
| 常压式液压动力转向器 |
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| 44. | Spiral wound gaskets test method of hydraulic pressure sealing characteristics |
| GB/T4620-1984缠绕式垫片水压密封性能试验方法 |
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| 45. | Air pressure, hydraulic pressure or electrical supply available to actuator. |
| 执行机构所采用的气源压力，液源压力，或电源。 |
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| 46. | Automobile hydraulic pressure test connection for braking equipment |
| GB/T5335-1985汽车制动装置液压试验的连接器 |
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| 47. | closed centre hydraulic system with pressure compensation |
| 压力补偿闭心液压系统 |
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| 48. | Keywords: special drill press, hydraulic pressure system, electric control. |
| 关键词：专用钻床、压系统、气控制。 |
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| 49. | Hydraulic pressure test of glass-lined equipments |
| GB/T7994-1987搪玻璃设备水压试验方法 |
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| 50. | Ningbo Yongyuan Hydraulic Pressure Motor Co., Ltd. specializes in making low speed big hydraulic pressure |
| 宁波市甬源液压马达有限公司是国家计委和机械部审批220家“振兴基础机械和基础件”特定企业之一。是全国生产低速大扭矩液压马达专业公司。 |
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