There could be quite a bit of trial and error of fitting involved before you arrive at the optimum 1/4" clearance between the blades and the bottom of the muller bucket."
可能有相当多的审判和参与之前，拟合误差位到达最佳1 / 4“通关的叶片之间的马勒桶的底部。
2
In this way, the matching of the screw and barrel diameter clearance, with the gradual wear and tear of the a little bit more.