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| 41. | The small aperture effect and the lens-Jike effect formed by model HAW aerodynamic laser window are analysed |
| 本文分析和实验研究了HAW型气动激光窗口所形成的小孔光阑效应和类透镜效应对光束传输的影响,阐明了在高功率气体激光器中使用气动激光窗口的优越性。 |
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| 42. | hem-stitched table cloth |
| 透花剌绣台布 |
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| 43. | take the hem up |
| 把折边改短 |
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| 44. | He hesitated in replying. |
| 他在回答时吞吞吐吐。 |
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| 45. | embroidered hem of clothes |
| 绣花衣边 |
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| 46. | seam binding | hem binding |
| 加边[缝边用 |
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| 47. | hem-stitched pillow-case |
| 透花剌绣枕套 |
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| 48. | Embarrassment caused me to hesitate. |
| 窘迫使得我(讲话)吞吞吐吐。 |
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| 49. | Let out the hem |
| 把折边放出来。 |
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| 50. | Shyness made her halt as she talked. |
| 羞怯使得她说话吞吞吐吐。 |
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