vt.预先计划；预先打算；预先规划
It is very important to preplan first aid and treatment for fluorine and hydro-fluoric acid exposures because of their unique properties. 因为它们的独特性质，对氟和氢氟酸暴露的急救和处理预先计划是非常重要的。
v.规划(预先计划)
