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| 61. | It is possible for the feed system to have a low impedance, looking downstream from the pressure source |
| 在压力源下游，供应系统在某一频率下可能有一低的阻抗。 |
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| 62. | has brought about great effect on the petrochemical industry and petroleum refining industry in the downstream |
| 高油价对石油产业下游石油化工和石油精炼产业的运行产生了深刻的影响。 |
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| 63. | downstream injection |
| 顺流喷射 |
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| 64. | downstream water |
| 下游水 |
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| 65. | downstream chain |
| 惰链 |
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| 66. | Show Downstream |
| 显示下级 |
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| 67. | downstream line |
| 排出管线 |
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| 68. | downstream shipping |
| 下水航行 |
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| 69. | downstream pressure |
| 活门后压力 |
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| 70. | shooting downstream |
| 逆飞行方向空中射击 |
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