In the constant temperature bath: capacity, 20l; form, the two outer layers cylinder (double).

恒温浴：容量，20l；形式，内外两层缸(双缸)。

youdao

In the constant temperature bath: capacity, 20l; form, the two outer layers cylinder (double).

恒温浴：容量，20l；形式，内外两层缸(双缸)。

youdao