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| 31. | The sharpened point of a quill pen. |
| 笔尖鹅毛笔磨细的尖 |
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| 32. | recording pen linkage |
| 记录笔尖的传动装置 |
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| 33. | Cup head nib bolts with large head |
| GB/T15-1988大半圆头带榫螺栓 |
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| 34. | osmiridium pen alloy |
| 锇铱笔尖合金 |
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| 35. | Cooper's pen alloy |
| 库珀笔尖合金 |
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| 36. | But as the paper moved from side to side under the pen point, |
| 由于纸在笔尖下来回运动， |
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| -- 来源 -- 新概念英语第四册 - Recording an earthquake |
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| 37. | jewel-tipped EEG pen |
| 钻石笔尖脑电描笔 |
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| 38. | fountain pen with stainless steel nib |
| 不锈钢钢笔 |
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| 39. | osmium pen alloy |
| 锇铑铂笔尖合金 |
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| 40. | in such a way that its point rests upon a piece of paper on the floor. |
| 笔尖落在地板上的一张纸上， |
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| -- 来源 -- 新概念英语第四册 - Recording an earthquake |
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