surface noises造句
例句與造句
- a study on the surface noise source identification of a diesel engine
柴油機(jī)表面噪聲源識(shí)別技術(shù)研究 - abstract : in the paper, based on the problem that strong reactive background noise can bring about a big measurement error when sound power is measured in a narrow room, such as power room in a diesel locomotive, it is analyzed theoretically that sound power is measured and carried out by using sound intensity probe hood, and sound power of diesel engine surface noise is measured in a power room
文摘:在狹小空間如內(nèi)燃機(jī)車動(dòng)力室的條件下，測(cè)量柴油機(jī)表面噪聲聲功率時(shí)，動(dòng)力室內(nèi)抗性背景聲很強(qiáng)引起較大的測(cè)量誤差，從理論上分析了采用聲強(qiáng)探頭罩進(jìn)行聲功率測(cè)量的可行性，并進(jìn)行了內(nèi)燃機(jī)車柴油機(jī)表面噪聲的聲功率測(cè)量。 - It's difficult to find surface noises in a sentence. 用surface noises造句挺難的