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| 41. | being known, it would be possible to decide the distance from the earth to the moon provided that a single |
| 因为光速是已知的，所以只要难将一束光束送上月球并使它返回地球接收站，就有可能测定从地球到月球的距离。 |
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| 42. | is joint-stock enterprise,mainly devolope,research and manufacture Crane of brand "Zhong Qi",namely single |
| 河南省中原起重机械有限公司是一家股份制合作工业企业,主要自行开发研制生产"中起"牌单、双梁桥式、门式起重机、电磁、防爆、抓斗、电厂专用轨起重机. |
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| 43. | As we've seen, the laser is distinctive in that it emits all its energy in the form of a single, narrow |
| 我们已经看到，激光器的一个突出之点，就是把全部能量都集中在一个很窄的，由受衍射限制的光束内射出。 |
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| 44. | resonators not only can extract high laser power from the active region efficiently, but also can get a single |
| 研究表明：该谐振腔不仅能有效提取激活区的能量，且可输出单光束偏心椭圆像散光束，获得较高质量的激光。 |
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| 45. | Methods As proposed by Sonntag and Sherouse, the dose gradient of a single open photon beam can be represented |
| 方法 剂量梯度理论指出 ,在X(γ)射线野轴线附近区域内 ,平野的剂量梯度的方向与射线野轴线平行 ; |
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| 46. | Through comparing the distribution of energy in biological tissue generated by single and multi-beam |
| 通过比较单束以及多束均匀分布光和高斯分布光照射下组织内的光子能量分布规律，分析了不同光源和光斑大小对光吸收分布的影响。 |
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