inexistent造句
Becausetheideal"rigidjoint"and"hingedjoint"areinexistent,thestiffnessofanyconnectiontypesisbetweenidealrigidjointandhingedjoint....
Becausetheideal"rigidjoint"and"hingedjoint"areinexistent,thestiffnessofanyconnectiontypesisbetweenidealrigidjointandhingedjoint....