26 试管 [試-] shìguǎn (test-tube) test tube: 空~ empty test tube || 洗~ wash test tube ' 51 演示 [-] (play-show) demonstrate: 有人试图用电子计算机代替试管 去~化学反应. Someone tried to demostrate the chemical reaction with a computer instead of test tubes. || 学生们向老师~了他们的发明创造. The students presented their innovation to their teacher. 583 '
test tube