本文介绍了几种加固方法，如内置加劲环加固、环口板加固、内置插板加固和主管壁厚加固等。
Several strengthening methods, including stiffened internal ring reinforcement, collar plate reinforcement, internal plate reinforcement and chord thickness reinforcement, are introduced here.
移动唇口板以减小内收缩比可以实现侧压式进气道自起动，主要是因为侧板分离包被排出进气道。
Moving cowl, decreasing interior contraction ratio also can realize the hypersonic sidewall compression inlet's self-starting because of separation bubble on sidewall spilling out.
他经过了一个曾经是烟囱的石冢，以及一口盖着生锈的锡板的枯井，井盖已经绣得与其说是一种防护，不如说是一种警告。
He passed a cairn of stones that once had been a chimney, and a dry well covered with a slab of the tin so rusty it served as more warning than a safeguard.
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