经常保养 meaning in English

constant maintenance

The machinery requires constant maintenance
这些机器需要经常保养维修。
The machinery requires constant maintenance
这些机器需要经常保养维修
The car has to be constantly maintained
汽车必须经常保养。
The car has to be constantly maintained
汽车必须经常保养。
He didn ' t like big motorycycle because they were uncomfortable , dangerous , and required a lot of mintenance
他不喜欢重型机车，因为骑起来不舒服，而且危险，又需要经常保养。