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| 51. | artificial spherical mitral valve |
| 人造球形二尖瓣 |
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| 52. | spherical permeability |
| 球形流动渗透率 |
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| 53. | spherical phrgeometer |
| 球形地球辐射表 |
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| 54. | spherical mercury xenon lamp |
| 球形汞氙灯 |
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| 55. | spherical phrradiometer |
| 球形全辐射表 |
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| 56. | spherical Ti alloy vesse |
| 钛合金球形容器 |
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| 57. | spherical phranometer |
| 球形总日射表 |
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| 58. | supports of spherical vessel |
| 球形容器支座 |
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| 59. | spherical pulse ionization chamber |
| 球形脉冲电离室 |
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| 60. | radial spherical roller bearing |
| 径向球形滚柱轴承 |
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