操作碱式滴定管是用拇指和食指。

The basic buret is usually operated bY thumb and forefinger.

youdao

要用石腊膜保护滴定管的塑胶头。

Use parafilm to secure the tip of the buret.

youdao

你能告诉我这些滴定管是干什么用的吗？

Can you tell me what these burettes are used for?

youdao

滴定管是用来转移一种已知体积的液体的。

Burettes are used to deliver a known amount of liquid.

youdao

滴定管是用来转移一种已知体积的液体的。

Burettes are used to deliver a known amount of liquid.

youdao