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- Methods An ARM embedded system was used to measure the speed of ultrasound,the broadband ultrasound attenuation(BUA) and the stiffness. 方法:设计采用ARM嵌入式系统,通过超声技术测量并计算足跟骨处的超声速度、宽带超声衰减值和硬度系数。
- The speed of ultrasound mainly reflects bone structural features, BUA mainly reflects hone density, and stiffness can synthetically reflects bone intensity. 超声速度主要反映骨的结构特性，宽带超声衰减值可以很好地反映骨的密度，而骨硬度指数值能较全面地反映骨强度。
- Methods:Broadband ultrasound attenuation(BUA),speed of ultrasound(SOS),bone quality index(BQI) and T-score of right calcaneum bone were measured by SONOST 2000 QUS ultrasound in 214 middle-aged people. 方法:采用韩国Osteosys公司生产的SONOST2000型定量超声仪对214名中年男性右跟骨宽波段超声衰减(BUA)和T-值(T-Score)进行检测。
- The speed of this aircraft is very high. 这架飞机的速度非常快。
- The hurricane has a speed of 73 miles per hour. 飓风每小时73英里。
- The speed of a runaway horse count for nothing. 脱缰之马的速度毫无价值。
- The speed of light is an important constant. 光速是一个重要的常数。
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- Rapidity or speed of motion; swiftness. 迅速，快速运动的快速或速度; 迅速
- When did the first measurement of the speed of sound take? 第一次测量声速是在什么时候？
- Study of the speed of ultrasound at distal radius in 974 healthy men 974例健康男性桡骨超声速率的研究
- Raindrop fall at a speed of about500 to1,000 feet a minute. 雨点以每分钟大约五百到一千英尺的速度下降。
- Study of the speed of ultrasound at tibia of healthy male in Guiyang urban area 贵阳市区健康男性胫骨超声速率的研究
- Airliners in service at present cannot fly faster than the speed of sound. 目前供使用的客运机飞行速度不能超过音速。
- Mach two equals twice the speed of sound. 二马赫相当于声速的二倍。
- The maximum speed of the aircraft is 800 m.p.h. 该飞机的最大速度为每小时800英里。
- The speed of light boggles the mind. 光速之快，不可思议。
- Objective To discuss the value of ultrasound in health check. 目的探讨超声检查在健康体检中的价值。
- The workers have timed the speed of the machine. 工人们已经调准机器的速度。
