Every lift comes complete with 2 battery packs, 24 volt charger, and emergency loweringsystem.
每个升降机配有2电池，24伏的充电器，以及紧急降低系统完成。
2
The relevant organizations involved usually include absorbing system, undercarriage tyre, brake slip resistance system, landing gear shimmy dampers, retracting-loweringsystem, etc.
Lowering this value means that a rule change becomes effective sooner, but it could have a negative performance impact, as the system will poll more often.