beaker的意思是:
“beaker”是一个英语单词,指烧杯;酒精灯。
读音:
这个单词的读音为:bɪˈeɪkə。
例句:
1. He used a beaker to measure the liquid.
2. The beaker was placed on a hotplate and heated with a blowlamp.
3. The liquid was transferred from the beaker to a test tube.
4. The beaker was placed on a scale to measure its weight.
5. A beaker is used to make tea for several people.
6. I carried the beaker carefully in my hand.
7. He placed the beaker on a magnetic stirrer to keep it moving.
8. A beaker was filled with sand and placed on the windowsill.
9. I carefully poured the contents of the beaker into a test tube.
10. The beaker was placed on a shelf in the laboratory.
使用beaker时的注意事项:
1. 实验过程中应保持谨慎,避免手部与烧杯内液体接触。
2. 烧杯内液体温度较高时,需在热源上加热,且需等待烧杯冷却后再转移物质。
3. 使用时注意保持容器平稳,避免破裂。
4. 注意观察实验现象,确保数据准确记录。
在科学实验中,beaker是一种常用的实验器材,主要用于盛放溶液或固体物质进行化学实验。使用beaker时,需注意其使用方法及注意事项,以确保实验的顺利进行。