The machinery consists of an ultrasonic extracting tank as the main body and supplementary units.
本套设备以超声波提取罐为主体，配备辅助系统组成。
Pneumatic type cover open and close is adopted. Two cylinders of large tension are allocated at the two sides of the extracting tank.
采用启动开关盖方式，在提取罐的两侧设置有两个大拉力的汽缸。
A recognition method based on gray correlation analysis algorithm is proposed through extracting LPC, characteristic from tank, helicopter and car acoustic.
提出了一种基于灰关联分析的声目标识别算法。
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