求翻译：清洗油必须使用与系统所用牌号相同的液压油，油温在45～80℃之间，用大流量尽可能将系统中杂质带走。液压系统要反复清洗三次以上，每次清洗完后，趁油热时将其全部放出系统。清洗完毕再清洗滤清器、更换新滤芯后加注新油。是什么意思？

Cleaning the oil used in the system must be used with the same grade hydraulic oil, oil temperature between 45 ~ 80 ℃, with a large flow of impurities in the system as far as possible away. Hydraulic system should be repeated three or more cleaning, cleaning after each time, while oil heat released

cleaning oil must be used with the system used the same brand hydraulic oil, oil temperature at 45 to 80 degrees, use between C as far as possible in the large flow away impurities in the system. hydraulic system has to be repeated cleansing more than three times a year and each time after washing,

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Cleaning of oil must be used with systems which use the same hydraulic oil, the oil temperature between the 45~80℃, with a large flow to remove impurities in the system as possible. Hydraulic system to repeatedly cleaning three or more times, each time after cleaning out, all releases it when you ta

Washing the oil must use the hydraulic oil the same as designation that system use, the oil is warm among 45-80 ℃, take the impurity in the system away as much as possible with the high flux. Hydraulic system want wash three or more times repeatedly, each time wash, take the advantage that the oil i