1)  High frequency x-ray photo
高频X线乳腺摄影
2)  high-frequency
高频
1.
The application of high-frequency heating technology in wood bonding process;
高频介质加热在木材胶合中的应用
2.
Piezoelectric drivers in high-frequency thermoacoustic refrigerators;
高频热声制冷机中的压电驱动器
3.
Scattering of Rayleigh waves by a shallow circular canyon:high-frequency solution;
Rayleigh波在浅圆凹陷地形附近的散射:高频解答
3)  high frequency
高频
1.
Study on high frequency electro-magnetic-shielding cement-based composite materials;
高频电磁屏蔽水泥基复合材料研究
2.
Determination of Sulphur in Coal by High Frequency Infrared Absorption Spectrometry;
高频-红外吸收光谱法测定煤中全硫
3.
Application of High Frequency Screening Technology at JSC "SSGPO" Iron Mine;
高频筛分技术在JSC“SSGPO”铁矿的应用
4)  high frequency screen
高频筛
1.
The high frequency screen composition and working principle are introduced,through the establishment of self-synchronization shaker mathematical model for dynamic analysis,starting against QZK2445 high frequency screen their bearings,electrical power,steel spring of static and projectile index,vibration intensity of a series of key factors,such as checking,a reasonable choice of a series of data.
介绍了高频筛的组成及工作原理,通过建立自同步振动筛数学模型,进行动力学分析,针对QZK2445高频筛,对其轴承、电机功率、弹簧静刚度及抛射指数、振动强度等一系列关键因素进行验算,合理选择出一系列数据。
5)  High Frequency Magnetic Field
高频磁场
1.
Fabrication of Al Matrix Gradient Composites in High Frequency Magnetic Field;
高频磁场下制备铝基表面增强梯度复合材料
2.
Fabrication of Al-Mg_2Si-Al_2O_3 graded composite material under high frequency magnetic field;
高频磁场下制备Al-Mg_2Si-Al_2O_3梯度复合材料
3.
Research on electromagnetic separation of inclusions from aluminum alloy melts by high frequency magnetic field;
高频磁场下铝合金中非金属夹杂物电磁分离研究
6)  high frequency surfacing
高频堆焊
1.
Effect of welding material component on high frequency surfacing process;
焊料成分对高频堆焊性能的影响
参考词条
补充资料:多线束均衡X线摄影


多线束均衡X线摄影


X线检查方法之一。以调整多个X线束曝光量的方法改进胸部细节对比的技术。MBER系统使用20个相邻的线束单元在水平方向组成扇形束,垂直方向扫描病人。每个线束单元均有各自的强度调整器和曝光检测器,后者配合电子反馈装置调节相应的调整器以使X线量不完全均匀化,使胸部均匀曝光,胸部影像记录在平面检测器上。当扫描纵隔或膈下时,调整器全部打开,以获得最大X线曝光量,扫描肺野时,仅打开约10%,这样获得的胸部影像能同时将肺野、肺纹理与纵隔及横膈遮盖区的解剖结构显示清楚,提高微小病灶的发现率。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。