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hearing-aid tube是什么意思，hearing-aid tube的翻译，hearing-aid tube音标、读音、用法和例句_食材铺反向词典
食材铺反向词典

hearing-aid tube

H 开头单词

基本解释

  • 助听器用电子管

英汉例句

    双语例句

  • Others have pointed out that it could be a vacuum-tube hearing aid, which was first sold in 1921.
    其他人指出那可能是个真空管的助听器，助听器最早在1921年销售。