关于necking的百科

• necking造句怎么写

• Isawthemneckinginthepark.Thetwoofthemwereneckingonaparkbench.Thetwoofthemwereneckingonaparkbench.Extensivethrough-thicknessshearcausescrack-tipnecking.Thepaperhasdescribedtheneckingdiestructureandtheformingprocessforshellbodies.Iftheneckingdiewaschan...
• 2018-02-1615517