Keep in good repair as recommended and replace with high quality oil.

按要求进行走合保养，并选用高品质机油进行更换。

youdao

Replace the hydraulic oil once at least annually; and only the high quality oil should be chosen.

液压系统中的液压油应至少每年更换一次，液压系统只能选用高质量的液压油。

youdao

The object was to extract high quality oil and meal by isopropyl alcohol at low costs and high safety.

目的是在保证安全、低消耗情况下用异丙醇浸出高品质的油脂和粕。

youdao

As host of this year's World Jatropha Summit, the government in Accra is seeking greater investment in the hardy plant whose seeds can be crushed into an oil that is processed into high-quality biodiesel.

VOA: standard.2009.08.23

That started changing with enormous geopolitical consequences after easy, high quality oil was found in the Arabian Peninsula and other parts of the Middle East.

CNN: America, the Saudi Arabia of tomorrow

Real Extra Virgin Olive Oil: High quality olive oil makes a great gift and not just for the obvious reasons that it tastes great, is good for you, and makes so many dishes taste better.

FORBES: Holiday Gift Guide: Best Gifts For Foodies

But this was Bissell's vision of the "new new thing"--get sufficient volumes of rock oil by drilling for it refine it into a high quality illuminating oil, and then take market share away from existing illuminants and, at the same time, build wholly new markets.

FORBES: The Pennsylvania Start-up That Changed The World