maintenance free

基本解釋

"In any case, we assume we will be using nearly maintenance-free engines by 2050, " Krein explains.
“屆時到2050年我們假設將使用免維護的發(fā)動機”Krein解釋說。
Other than putting in new paper and changing the ink cartridge (only once, I think), it’s a maintenance-free dinosaur that we have no intention of tossing out anytime soon.
除了裝紙和換墨盒(我想衹有一次)，這是一條不需維護的恐龍，我們不打算丟掉它。
The sealed spherical roller bearings are protected against both particle and moisture contamination, enabling them to offer effective performance over long, virtually maintenance-free service lives.
這個密封的球麪滾子軸承的保護，以防止顆粒和水分的汙染，使他們能夠提供有傚的長期業(yè)勣，幾乎免維脩服務的生命。

His maintenance-free bike uses a "secret" mix of organic materials to make it waterproof and fireproof, and is then lacquered to give it a friendlier appearance.
ENGADGET: Cardboard bicycle 'close to mass production': tough, green and just $20
This helps it land at No. 2 on the list, despite BMW's fairly comprehensive free scheduled-maintenance program for all models.
FORBES: Most Expensive Cars To Drive
To allay concerns about reliability--Fiats still rank near the bottom of owner-satisfaction surveys in Europe, and "Fix It Again Tony" remains lodged in the memory of potential American buyers--Fiat has included a 50, 000-mile warranty on the 500 and free maintenance for three years.
FORBES: On The Cover/Top Stories