middle_e_section_有道手机词典

1.The axially moving string system is divided into two spans, i. e. a controlled span and an uncontrolled span, by a tensioner which is located in the middle section of the string.
此系统被作动器分成未控和受控两部分，通过作用在作动器上的控制力对受控部分进行主动控制。
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