Based on "two-microphone" method, a sound intensity measurement was carried out towards a vehicle four-stroke gasoline engine in a semi-anechoic room.

运用声强测试技术的双传声器法原理，对一台车用汽油发动机在半消声室内进行了声强测量。

youdao

The aircraft is powered by a 360hp air-cooled, four-stroke, petrol (gasoline) piston engine.

飞机由一台360马力风冷、四冲程汽油活塞发动机提供动力。

youdao

Based on the working principle of the four-stroke engine, we model the four-cylinder gasoline engine using bond graph technique.

基于四冲程发动机的工作原理，用键合图对一四缸汽油机进行了建模。

youdao

How does a four-stroke gasoline engine work?

NPR: Sputnik Left Legacy for U.S. Science Education

EcoMotors and Achates are developing two-stroke, opposed piston diesel engines while Pinnacle is working on a four-stroke opposed piston gasoline engine.

FORBES: Engine Startup EcoMotors Signs Deal with Chinese Manufacturer