言语的语言学是行为科学的一部分，它以言语纵横两个结构系统为其研究对象。
Speech linguistics belongs to behavioral science. It takes the two vertical and horizontal systems of speech as its study object.
以汽车发动机螺旋进气道为研究对象，探讨了逆向工程在汽车零部件设计中的应用。
Regarding the helical intake port as a research object, the application of reverse engineering in automobile parts design is discussed.
本文以国内一家专业从事摩托车和汽车电装品零部件生产的企业——CHCD公司为研究对象。
This article studies a company, CHCD company, which specifically manufactures Motorbike Components and Electric parts of Automobile.
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