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| 31. | fluted columns |
| 刻有凹槽的柱子 |
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| 32. | fluted pillars |
| 有凹槽的柱子 |
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| 33. | relief cuts on lands |
| 硬合金齿间凹槽 |
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| 34. | back-berm trough |
| 滩肩后凹槽 |
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| 35. | roof in hollow tiles |
| 凹槽形瓦屋顶 |
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| 36. | stress concentrator |
| 管子应力集中凹槽 |
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| 37. | shank with whistle notch |
| 哨形凹槽刀柄 |
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| 38. | fairlead pocket |
| 导链器凹槽 |
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| 39. | oval fillister-head screw |
| 凹槽椭圆头螺钉 |
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| 40. | A small flute pitched an octave above a regular flute. |
| 短笛一种音调比普通笛子高八度音的小笛子 |
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