The eustachian tubes connect the middle ears to the pharynx, allowing air pressure on the eardrum to be equalized.
咽鼓管将中耳连接到咽上，可调节作用在鼓膜上的气压。
Apply constant pressure equipment for the scraper. Once the pressure is fixed, the uneven thickness of the printing substrates can be equalized automatically.
刮印刀采用恒压装置，刮印刀印压强弱设定后，对于印刷物厚薄不规则能自动补偿。
The pressure equalized rain-screen (PER) walls were exactly proposed in this context.
等压雨幕墙正是在这一背景下诞生的。
The pressure equalized rain-screen (PER) walls were exactly proposed in this context.
等压雨幕墙正是在这一背景下诞生的。
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