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一般碱式滴定管装入溶液后排除气泡的方法较容易掌握，溶液消耗量也少。只要将橡皮管向上弯曲，挤动玻璃珠，使溶液从管尖喷出，即可排除气泡。酸式滴定管就比较麻烦。a．按实验教材描述的操作方法，可将管身倾斜４５°～６０°，迅速转动活塞使溶液很快冲出并将气泡带走。但该
After the basic burette is put into a solution, the method for removing air bubbles is easier to grasp and the consumption of the solution is also less. As long as the rubber tube is bent upwards and the glass beads are squeezed to eject the solution from the tip of the tube, bubbles can be eliminated. Acid burettes are cumbersome. a. According to the operation method described in the experimental textbook, the tube body can be tilted by 45° to 60°, and the piston can be rapidly rotated to quickly flush the solution and take away the bubbles. But the