Science of Chinese characters has both the function of theoretical guidance and the value of practical application.
“汉字学”是研究汉字的学科，对识字教学既有理论指导作用，也有实际应用价值。
While introducing "coaxial sealing" principle and characters, the superiority and practical application value of using "coaxial sealing" in piston energy-storage is expounded and proved.
在介绍“同轴密封”原理及特点的同时论证了在活塞式蓄能器中应用“同轴密封”的优越性和实际应用价值。
While introducing "coaxial sealing" principle and characters, the superiority and practical application value of using "coaxial sealing" in piston energy-storage is expounded and proved.
在介绍“同轴密封”原理及特点的同时论证了在活塞式蓄能器中应用“同轴密封”的优越性和实际应用价值。
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