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| 31. | copper-base friction plate |
| 铜基摩擦片 |
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| 32. | base-plate wedge |
| 基片楔突 -噬菌体 |
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| 33. | switch base plate |
| 大垫板 |
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| 34. | Some distance above the lead block a photographic plate is placed. |
| 在铅块上方某一距离处放一照相底板。 |
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| 35. | steel base plate |
| 钢垫板 |
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| 36. | base-plate fibril |
| 基片丝 -噬菌体 |
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| 37. | holder base plate |
| 支座垫板 |
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| 38. | iron base friction plate |
| 铁基摩擦片 |
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| 39. | temporary base-plate |
| 暂基托 |
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| 40. | Ions of different isotopes converge at different points on the photographic plate. |
| 在照相底板上不同的同位素的离子会聚于不同点。 |
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