声波定位: sound fixing and ranging◇声波定位器 phonozenograph; 声波定位仪 sonar
Example Sentences:
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Single crystal wafers applied for surface acoustic wave device - specification and measuring method 表面声波装置用单晶薄片.规范和测量方法
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Single crystal wafers for surface acoustic wave device applications - specifications and measuring methods iec 62276 : 2005 ; german version en 62276 : 2005 用于表面声波装置的单晶硅片.规范和测量方法