二に連れん球きゅう

noun

double balloon; bulb with reservoir

Technical term for a bulb or balloon with two connected chambers, used in laboratory equipment, medical devices, or similar apparatus.

• 実じっ験けんでは二に連れん球きゅうを使つかって試し薬やくを吸きゅう引いんした。

  In the experiment, we used a double balloon to aspirate the reagent.