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声能发动机美国科研人员正在设法用声音来启动发动机。美国新墨西哥州洛斯国家实验室的科研小组已经研制出没有运转部件，仅靠声能发动的发动机。这种名为“热声学发动机”的新型发动机是用钢制成的，成本较低。它由一个长棒球棍状的共振器与一个椭圆形的容器组成，没有把柄。?
Sound Engine American researchers are trying to start the engine with sound. A team at the Los Alamos National Laboratory in New Mexico has developed an engine that has no moving parts and is powered solely by sound energy. This new type of engine, called “Thermo-Acoustic Engine,” is made of steel and costs less. It consists of a long baseball-bar resonator and an oval container with no handle. ?