ballistic mortar test 弹道臼炮试验

mortar test cube 砂浆试块

ballistic c mortar test 弹道臼炮试验

plastic mortar strength test 软炼胶砂强度试验

Mortar compressive strength test 砂浆抗压强度试验

earth-dry mortar strength-test 硬练胶砂强度试验

Accelerated mortar bar test 快速砂浆棒法

Test method for mortar mixers 灰浆搅拌机试验方法

mortar-cube test 砂浆试块试验