词汇	PE powder
释义	PE powder 聚乙烯粉末
随便看	rigid-body model rigid body motion rigid-body motion rigid body movement rigid body oriented mechanism rigid body pendulum rigid body planar motion rigid body plane motion rigid body rotation rigid-body spacecraft rigid body spring model rigid body spring model method rigid body system rigid body transformation rigid body turning inertia instrument rigid body vibration rigid-body vibration rigid-body Wushu equipments rigid boom system rigid boundary rigid boundarycondition rigid boundary condition rigid braced derrick crane rigid braced monoplane rigid brace load