observing tube造句

"observing tube"是什么意思   

例句与造句

  1. He observed tubes with energy rays extending from a negative electrode.
  2. A few feet from the diving hole, scientists have lowered an observing tube 30 feet into the ice.
  3. It's difficult to find observing tube in a sentence. 用observing tube造句挺难的

相关词汇

  1. "observing systems"造句
  2. "observing the cosmos"造句
  3. "observing the moon"造句
  4. "observing time"造句
  5. "observing tower"造句
  6. "observing tubes"造句
  7. "observings"造句
  8. "obsesion"造句
  9. "obsesiones"造句
  10. "obsess"造句
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