定值怎么计算简介:Facing the sudden burst of mortar shells, Song Yuhe had to order the soldiers to get out of the fortifications. These fortifications could not be penetrated by rifle bullets and machine gun bullets, but they could not withstand the Japanese shells.
Facing the sudden burst of mortar shells, Song Yuhe had to order the soldiers to get out of the fortifications. These fortifications could not be penetrated by rifle bullets and machine gun bullets, but they could not withstand the Japanese shells.