与"variable depth sonar"相近的词条

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• variable density filtering
• variable density sign
• variable density thin light pipe
• variable-density track
• variable depth dose
• variable depth sonar
• variable dilution sampling
• variable-discharge turbine
• variable-displacement device
• variable displacement pump
• variable domain
• Variable Echo
• variable element
• variable elevation beam
• variable energy
• variable energy accelerator

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