A buret is used to titrate liquids.
滴定管用于液体滴定。
Use parafilm to secure the tip of the buret.
要用石腊膜保护滴定管的塑胶头。
The basic buret is usually operated bY thumb and forefinger.
操作碱式滴定管是用拇指和食指。
So I suggest that operate the basic buret with thumb, forefinger and middle finger.
因此，我建议用拇指、食指和中指操作。
Upper Paleolithic huts from Buret, Siberia. These structures date from about 10, 000 BCE.
旧石器时代晚期西伯利亚buret的棚屋，时间约为公元前10 000。
The plastic tip helps in the formation of small droplets of solution to drop from the buret.
塑胶头会帮助滴定管滴出细小液滴。
Mean. Estimate what you think the uncertainty is in weighing, using the buret, and in endpoint location.
估计一下在秤量，使用滴定管和确定终定位置的不确定度。
Chemistry experiment is based on the elementary knowledge, especially checking the usage of suction pipet and buret.
化学实验重在基础，特别是考察移液管和滴定管的使用；
High-quality buret have a venting-mechanism with which they can be very easily refilled with the exact volume for which the buret is calibrated.
高级的滴定管都有一种抽液功能使它们每次在滴定完毕时可以很精确地将滴定液加到精确的刻度。
Estimate what you think the uncertainty is in weighing, using the buret, and in endpoint location. Do error propagation from these values and compare with the observed precision.
估计一下在秤量，使用滴定管和确定终定位置的不确定度。用这些值计算误差传播而且跟所观测值比较一下。
Estimate what you think the uncertainty is in weighing, using the buret, and in endpoint location. Do error propagation from these values and compare with the observed precision.
估计一下在秤量，使用滴定管和确定终定位置的不确定度。用这些值计算误差传播而且跟所观测值比较一下。
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