When transformation of parts of speech takes place, we should distinguish synchronism from diachronism, grammar from rhetoric anti fixity from temporariness.
摘要转类，应当区分历时和共时、语法和修辞学、固定的和临时性的。
制作等中的)声画同步, 声像同步
;When transformation of parts of speech takes place, we should distinguish synchronism from diachronism, grammar from rhetoric anti fixity from temporariness.
摘要转类，应当区分历时和共时、语法和修辞学、固定的和临时性的。
This paper introduces the principles of the vibroplatform,provides some methods for the detection and diagnosis of the servo valve,and makes the field monitoring of the synchronism of vibroplatform.
台的原理作了简要介绍,给出了伺服阀的检测诊断方法,并台的同步性进行了现场监测。
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