Make sure there are no suspended air bubbles in the water when you are backing the lever out. The lever actuation must be slow and smooth here.
确定当你把拉杆拉回来时里面没有不会动的气泡，这个步骤里刹把的动作要缓慢且滑顺。
Make sure there are no suspended air bubbles in the water when you are backing the lever out. The lever actuation must be slow and smooth here.
确定当你把拉杆拉回来时里面没有不会动的气泡，这个步骤里刹把的动作要缓慢且滑顺。
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