[问答题] 简述整经的目的。

待提货状态的订单做预约提货交易时可以修改提货网点。 According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 20 knot service speed, must be capable of producing a rudder movement at which of the minimum speeds listed below?（） ["7 knots","10 knots","15 knots","20 knot"] Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed（）. ["preload","liquid variable load","fixed load","basic load"] 小电流接地系统发生“单相接地”时应如何处理？ 轮胎对于行驶安全性极为重要，下面关于轮胎的描述哪个（些）是正确的（） ["胎纹深度不应小于3mm，否则高速在浅水中行驶时滑水的危险性极大","BMW建议不管实际磨损情况如何，都应在最迟6年后更新包括备用轮胎在内的所有轮胎","欧洲法律规定胎纹的最小深度为1.8mm"] 简述整经的目的。