Large vacuum desiccator was used to collect ammonia volatilized from above ground parts of soybean during its growth period .

利用大型 真空 干燥器，测定了大豆在不同生长发育阶段地上部分氨的挥发损失。

Vacuum storage : Chemicals reagent samples electronics lens tea and other high value items can be safeguarded in the Vacuum Container ( Desiccator ) .

真空 干燥贮存：生化试剂，药品，光学镜头， 种子，精密元器件，文物等品种；