Push rod points a way

You do not say this drawing that's all right is used, this has a lot of people really won't have visions of is so be necessary, so simple still, look for final target ball above all, it is B dot, the recent dot A that finds out 2 balls to be apart from B to nod again is nodded, this A nods be us to point a feature, of course our target is B, this also is to prove 2 balls do not have the foundation of the goal to go up, let B enter in bag, also be to be able to know the travel of mother ball push rod to take the way of the course, actually so simple, but present ball differs with tablecloth, you need a few adjustment, come filling accuracy of be addicted to, you want firmly to remember this kind points a way, in the moment of truth very helpful.

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