基本操作固体需匙或纸槽,手贴标签再倾倒。读数要与切面平,仰视偏低俯视高。试纸测液先剪小,玻棒沾液测最好。试纸测气先湿润,粘在棒上向气靠。酒灯加热用外焰,三分之二为界限。硫酸入水搅不停,慢慢注入防沸溅。实验先查气密性,隔网加热杯和瓶。排水集气完毕后,先撤导管后移灯。 The basic operation of solids is to use a spoon or a paper slot, hand-labeled and then dumped. The reading should be flat with the face, looking down and looking high. The test paper test liquid is cut first, and the glass stick liquid test is the best. The test paper gas is wetted first and sticks on the rod to the air. The wine lamp is heated with an external flame and two-thirds is the limit. Sulfuric acid is stirred in the water and slowly injected into the anti-spill splash. The experiment first checked the airtightness, the net heating cups and bottles. After the drainage is completed, remove the conduit and move the light.