primary beam
推荐文章
释义
有用束流；初级射束；原射线束；原始束流
权威例句
Secondary ion mass spectrometry with cesium ion primary beam and liquid target matrix for analysis of bioorganic compoundsEffect of primary beam energy on the secondary ion sputtering efficiency of liquid secondary ionization mass spectrometry in the 5-3...
On the role of the primary beam and of scattered or sputtered particles in the faceting of cones on bombarded surfaces
Calculation and measurement of the dose at points outside the primary beam for photon energies of 6, 10, and 23 MV
Surface transient behavior of the 30Si+ yield with angle of incidence and energy of an O+2 primary beam
Luminaire for creating a primary beam and a secondary beam
Primary-beam diffraction modulated electron emission (PDMEE) for surface structural analysis
Calculation and measurement of the dose to points outside the primary beam for CO-60 gamma radiation
X-ray fluorescence analysis in the ng region using total reflection of the primary beam
Peridose, a software program to calculate the dose outside the primary beam in radiation therapy
1. The SIMS technique bombards the lunar samples with a primary ion beam that allows the researchers to separate the ions with a magnet, depending on the charge.
SIMS技术可以以离子束轰击月岩样本，从而使研究人员调整电荷水平，用磁石分离出离子。
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2. Their primary weapon was a lightsaber pike with a red beam extending from the tip of the weapon.
他们的主要武器是一支光剑矛并于矛的顶端有一支延伸的红色光束。
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3. The primary cause of breakage is that the dynamic stress exceeded the allowable fatigue limit of the beam, and another cause is that the structure of the beam is unreasonable.
通过计算证明引起断裂的根本原因是动应力超过了梁的许用疲劳极限，另一原因是梁的结构不合理。
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4. The authors point out that the primary characteristics of coming generation LRF's are eye safety, higher efficiency and beam quality, newer laser materials, function modularization.
对人眼安全、提高效率、改进光束质量、采用新的激光材料及功能模块结构将是新一代军用激光测距机的主要考虑因素。
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5. The primary of the analysis include the lateral force in the top deck of box girder and the lateral force of the diaphragm beam on the pier.
其分析主要包括：箱梁顶板的横向受力分析以及箱内横隔梁的横向受力分析。
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6. Considering the restraining moment of the secondary beam, the paper deduces formulas for calculating torsional moment of edge beam of frame. Primary factors of affecting torsional moment are analyzed.
考虑次梁的约束作用，推导了框架边梁的扭矩计算公式，分析了影响扭矩大小的主要因素。
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7. If the optical head is on track, then the primary beam will be centered on a track (with pits and bumps) and the two secondary beams will be centered on land.
如果光学头在轨道上，主激光束将处于轨道中心，两个副光束处于轨道之间。
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8. The fixing of davit and primary lifting beam is the key for assembling the hoisting tool of satellite.
吊块及主吊梁的安装是某型号卫星整星吊具安装中的关键环节。
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9. The propagation characteristics of laser beam in underground air medium were studied, primary causes of the laser energy decaying in the underground were explored theoretically and practically.
研究激光光束在井下空气介质中的传播规律，从理论和实践上探索和分析井下激光能量衰减的主要原因。
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10. In this paper, the orthogonal design method is used to find out the primary and secondary factors that affect the bearing capacity of beam-to-column connections in steel moment frames.
本文通过在钢框架梁柱腹板连接承载力影响因素分析中引入正交设计方法，找出了主要因素和次要因素。
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11. In view that large top torque and negative torque are produced when crank balance (primary balance) is adopted, we present the secondary balance of beam pumping unit.
针对游梁式抽油机在采用曲柄平衡(又称一次平衡)时存在的峰值转矩较大、负转矩严重等现象，提出了有关抽油机的二次平衡问题。
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12. A new way that both steel temporary bridge supported by the primary piers and the simple-supported beam bridge work together to bear the heavy loa.
提出了一种利用原桥墩、台架设临时钢便桥与原桥组合受力共同承担大件通过的运输方案。
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13. There are two primary ILH system configurations available, Open Beam and Closed Beam.
ILH系统有两种基本的配置结构：开放式和密封式。
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14. Objective To analyze the clinical outcome of 934 primary nasopharyngeal carcinoma treated with conventional external beam radiotherapy alone.
目的分析934例初治鼻咽癌单纯常规外照射放疗的临床效果，探讨提高疗效的临床因素。
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15. The intensity of the secondary radiations is weak compared with the intensity of the primary X-ray beam, and some of it, too, may not escape from the material.
这些次级放射线的强度跟原始x射线相比较弱，而且其中的一部分可能留在了那种物质中。
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16. This paper presents a primary investingation on machining polycrystalline diamond by laser beam.
本文对激光加工技术在聚晶金刚石材料上打孔和切割进行了探讨。
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17. The simulation results for a pin point electron beam show that a good resolution corresponds to lower values of primary energy, detection energy Windows and detection Angle.
点源模型的模拟结果显示小的入射能量、探测能量窗口及探测角值对应较好的分辨率。
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18. Objective To investigate the value of electron beam CT (EBCT) in diagnosing nonmyxomatous primary cardiac and pericardial neoplasms.
目的探讨原发性非黏液瘤性心脏心包肿瘤的EBCT特征，评价EBCT在心脏肿瘤诊断中的价值。
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19. The invention discloses a production method for radionuclide and includes the following steps: a high power laser is adopted to match with a primary target to generate particle beam;
本发明公开了一种放射性核素的生产方法，包括以下步骤：采用大功率激光器与初级靶作用产生粒子束；
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20. Engineering practice, many of whom overlap made the issue reinforced the upper primary and secondary beam, Plagued many engineering and technical personnel.
工程实践中很多人提出主次梁上部钢筋交叠问题，困扰无数工程技术人员。
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21. The primary function of the optical transmit antenna is to collimate far-field divergence of the laser beam and reduce the size of the laser beam in .
由于大气衰减的影响，非视线散射大气光通信需要使用光学天线以提高对光信号的采集能力，进而增加通信距离。
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22. The primary function of the optical transmit antenna is to collimate far-field divergence of the laser beam and reduce the size of the laser beam in .
由于大气衰减的影响，非视线散射大气光通信需要使用光学天线以提高对光信号的采集能力，进而增加通信距离。
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primary beam
