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| 41. | seepage control by hard soil-cement |
| 干硬性水泥土防渗 |
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| 42. | Political control by a mob. |
| 暴民政治由暴民进行的政治统治 |
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| 43. | Database is used to storage and display data so that data files can be easily managed. Lab VIEW PID Control ToolSet is used to control the rotate speed and pressure, which can make the software more reliable. |
| 其中,利用数据库技术完成试验台数据存储及显示,简化了数据文件的管理:利用LabVIEW提供的外挂工具包LabVIEW PID Control ToolSet完成试验台中转速和压力的控制,简化了程序代码, |
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| 44. | roof control by wall-shape pillar |
| 煤柱支撑顶板法 |
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| 45. | magnetic field control by Hall effect |
| 霍尔效应磁场控制 |
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| 46. | fly-by-light flight control system |
| 光传飞行控制系统 |
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| 47. | supervision and control by the customs |
| 海关监管 |
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| 48. | seepage control by soil-lime pavement |
| 灰土护面层防渗 |
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| 49. | control by changing height of nozzle |
| 变高度喷嘴调节 |
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| 50. | side-by-side dual control system |
| 并列双控制系统 |
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