一架飞机可以有一部，两部或者更多发动机。

There may be one, two or more engines in an airplane.

youdao

很显然，许多发动机油样品中，粘度值明显不在正常范围内。

It is clear that in many engine oil samples, the viscosity index is significantly different from the normal range.

youdao

在很多发动机内，恒温控制器装在进气岐管或排气岐管的空腔中。

In many engines, the thermostat is located in a well in the intake or exhaust manifold.

youdao

在很多发动机内，恒温控制器装在进气岐管或排气岐管的空腔中。

In many engines, the thermostat is located in a well in the intake or exhaust manifold.

youdao