目的：观察潜艇艇员冷却背心装填物凝胶经口急性毒性。

Objective: to observe acute peroral toxicity of gelatum in the cooling vest for the submarine crew.

youdao

目的：观察潜艇艇员冷却背心装填物凝胶经口急性毒性。

Objective: to observe acute peroral toxicity of gelatum in the cooling vest for the submarine crew.

youdao