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| 41. | hollow conductor |
| 空心导线 |
|
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| 42. | hollow ionization chamber |
| 空心电离室 |
|
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| | |
| 43. | ho11ow glass; hollow glassware |
| 空心玻璃制品 |
|
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| | |
| 44. | hollow steel rim |
| 空心轮辋 |
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| | |
| 45. | hole-bored axle from end to end |
| 空心车轴 |
|
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| | |
| 46. | hollow copper wire |
| 空心铜线 |
|
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| | |
| 47. | hollow milling cutter |
| 空心铣刀 |
|
|
| | |
| 48. | A fellow of vain pretension |
| 空心老倌 |
|
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| | |
| 49. | hollow thamnocalamus |
| 空心箭竹 |
|
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| | |
| 50. | hollow core cable |
| 空心电缆 |
|
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