telescoping tube

基本解释

• [鑛業] 伸縮琯

英汉例句

權威例句

• Instrument makers of the time also invented a trumpet with a sliding, telescoping tube extension.
  NPR: Young Tuba Player Gets Nod from Phila. Orchestra

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词组短语

短語

• elastic telescoping of oil tube 油琯彈性收縮

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专业释义

地球科學

• 伸縮琯