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- ion beam width 离子束宽度
- It is a technique called ion beam writing. 这一技术被称为离子束刻写。
- Ion beam mutation has significant bio-effect. 摘要离子诱变具有显著的生物学效应。
- By applying "slit method",the beam width of THz wave was measured. 利用“狭缝法"测量了太赫兹光束的束宽。
- In case of electronic scanning the beam width is broader by a factor of two . 电子扫描时，波束宽度展宽一倍。
- The 6 achievements on Ion Beam Bio-engineering of Low Energy were outlined. 摘要简述了低能离子束生物技术在6个主要方面的研究成果。
- Ion beam induced surface modification of polymer was extensively discussed. 介绍了运用高能离子束对聚合物材料进行表面改性的新工艺。
- Allison scanner for high-current ion beam emittance measurements[J]. 引用该论文 徐蓉;邹宇斌;高淑丽;郭之虞;彭士香;钱锋;赵捷.
- It is important to eliminate or degrade the effect caused by the beam width of echo sounders and reflect the true seabed. 为提高海底地形的测量精度，应消除或减弱波束角效应影响。
- Antireflective film prepared by periodic ion beam assisted deposition[J]. 引用该论文 张大伟;黄元申;贺洪波;邵建达;范正修.
- With the help of statistic principle, the estimtion ormulas ofthe antenna gain loss, beam width and siedlobe level in sparse array are derived. 应用概率统计原理，导出了具有幅相误差、元失效时稀疏阵天线阵增益损失、束宽度、向、瓣电平的估计公式、得出一些有益结论。
- When the initial power equals the critical power, a stabile spatial soliton is obtained, and generally the beam width takes periodical contraction or diffraction. 当初始功率等于临界功率时,可以得到一个稳定的空间孤子,而一般情形下,束宽则作周期的压缩或展宽变化。
- Results are satisfactory. this method can be applied to multibeam synthesis for arbitrary set of nonuniform elements, as well as beam width stretch and sector shaped beamforming. 该方法可用于任意单元构成的不均匀阵列天线;还可用于波束展宽及扇形波束的合成 In this paper; an effective method of multibeam smart antennas pattern synthesis for base station using digital beamforming technique is presented.
- Using sintered B4C as target material, ternary BCN thin films were synthesized by means of pulsed laser deposition assisted by nitrogen ion beam. 以烧结B4C为靶材料、在氮离子束辅助下用脉冲激光沉积方法制备了三元化合物硼碳氮(BCN)薄膜。
- The paper studies three key problem of base station array antenna for mobile communication, controlled radiation pattern, beam width and passive intermodulation. 本文研究移动通信基站天线中的三个关键问题，波束赋形、波瓣宽度、无源交调。
- In addition, average angular information is taken from adjacent segments and the incident ion beam. 另外，可以从邻近线段和入射离子束取得平均角度的信息。
- Compared with the conventional array receiver, optimal transmitting beam width decreases and transmitting power requirement is debased in the distributed array receiver. 与传统式阵列相比,分布式阵列可以采用更窄的发射光束宽度,降低对发射功率的要求。
- The system of ion beam implantation had been established and the biological effects were primarily studied. 壮观链霉菌1043为一壮观霉素生产菌种，通过实验建立了离子注入选育壮观链霉菌。
- When the input power is smaller than the critical power, the beam width takes quasi-periodical diffraction with the Jacobian elliptic sine and elliptic cosine functions. 当光束初始功率小于临界功率时，光束束宽则按雅可比椭圆正弦函数和椭圆余弦函数作准周期展宽变化；
- Streptomyces spectabilis 1043 which produces spectinomycin is implanted by N(superscript +) ion beam. 摘要利用离子注入选育高产壮观链霉菌。
