999 ( that is , maximum open project files minus 1 for the resource pool itself ) 999 (即打开项目文件的最大值减1 )
Methods of test for adhesives - physical tests on hot - melt adhesives - determination of maximum open time of hot - melt adhesives oven method 粘合剂试验方法.第h4部分:物理试验.最大断开时间测定