The theoretical value of bending normal stress at point A is( )MPa,(A点的弯曲正应力理论值为_____MPa)
The theoretical value of bending normal stress at point A is( )MPa,(A点的弯曲正应力理论值为_____MPa)
发布时间:2025-07-23 02:38:00
The theoretical value of bending normal stress at point A is( )MPa,(A点的弯曲正应力理论值为_____MPa)