The three dimensional solid model of the face gear with different pit morphology and the simulation model of the face gear transmission system of the pit morphology are established. through the contact collision algorithm of multi- body dynamics. the change regularity of meshing force and output speed of the different pit morphology face gear transmission under certain condition is an... https://iwbnixchdne8.timeblog.net/70688125/biochemical-features-of-the-cry3a-toxin-of-bacillus-thuringiensis-subsp-tenebrionis-and-its-toxicity-to-the-red-imported-fire-ant-solenopsis-invicta