2) calcaneus ultra sonometry
跟骨-超声学
4) calcaneus/ultrasonography
跟骨/超声检查
5) beam steering
超声跟踪
1.
In this paper,ways to design LiNbO_3 anisotropic acousto-optic device based on beam steering theory are studied.
以超声跟踪反常声光器件的设计思想为基础,讨论了超声跟踪LiNbO_3反常声光器件的设计思路和具体方法。
2.
A novel optimum design method of LiNbO3 anisotropic acousto-optic device based on beam steering is put forward, the accurate design parameters under different incident light angle and different number of transducers are systematically calculated.
给出了一种新的超声跟踪铌酸锂反常声光器件的优化设计方法,利用该方法系统计算了在不同入射角以及不同换能器片数情况下器件设计参数的准确数值。
3.
The beam steering theory is studied to solve the problem that we can not get wider 3db Bragg bandwidth and high diffraction efficiency at the same time in the optimum design of LN anisotropic acousto-optic deflector (AOD) which is a crucial issue in the process to design an AO deflector.
本文介绍了为解决铌酸锂反常声光偏转器相对带宽和衍射效率之间的矛盾使用在铌酸锂反常声光偏转器上的超声跟踪优化设计方法。
6) Tibia SOS
胫骨骨超声
补充资料：跟骨结节骨软骨病
跟骨结节骨软骨病
osteochondrosis of calcaneal tubercle，Sever disease
1907年Haglund首先描述此病。1912年Sever提出系跟骨第二骨化中心缺血性坏死。多见于7～10岁男孩。常有近期剧烈运动史。足后跟肿痛、压痛。严重者足跟不敢着地。X线摄片可见跟骨结节骨骺致密，碎裂，外形不规则。本病可自限。急性期少走路及站立，避免奔跑及跳跃，穿软底鞋，垫高鞋后跟。伴有滑囊炎者可理疗或局部注射醋酸可的松类药物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条