The result shows that acoustic optimization of thin shells of Engine samp may reduce perfectly the radiated noise.
结果表明，对内燃机薄壳结构进行声学优化，可以大大减小噪声辐射。
As a key component of engine, the head of cylinder is a typical complex casting with thin wall.
作为汽车重要部件的发动机气缸盖，是典型的薄壁复杂铸件。
Combustion instability not only affects the stability of the aero-engine work, but also caused the combustion chamber flame tube thin-walled structure acoustic-vibration coupled fatigue.
燃烧不稳定不仅影响航空发动机的工作稳定性，而且还是造成燃烧室火焰筒薄壁结构声振耦合疲劳破坏的重要原因。
JMC Casting Plant(JCP) specializes in producing automobile engine, gray iron and nodular iron castings, which are thin-walled, and in high strength.
江铃铸造厂是以生产发动机铸件及车用薄壁高强度灰铁和球铁铸件为主的专业铸造厂。
The experiment of sound radiation efficiency and engine noise test were carried out when the engine was equipped with thin-wall components with free and compound damping.
采用表面振动法进行了柴油机表面辐射噪声的诊断，并对附加自由和复合阻尼的薄壁件进行了声辐射效率试验研究和整机试验。
I know the person is confused when they say that a 0w-30 oil is too thin for their engine because the old manual says to use 10w-30.
我了解到一些不懂的人说0w - 30的机油对他们的策动机来说太薄(稀)了，由于旧的手册上说要是用10 W - 30的机油。
I know the person is confused when they say that a 0w-30 oil is too thin for their engine because the old manual says to use 10w-30.
我了解到一些不懂的人说0w - 30的机油对他们的策动机来说太薄(稀)了，由于旧的手册上说要是用10 W - 30的机油。
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