When Boeing tried to distract attention from this flop by announcing a near-supersonic long-haul jet dubbed the sonic Cruiser, it fell even flatter on its face.
此时，为了转移人们对此事件的注意力，波音宣布高亚音速巡航机，甚至夸大其辞。
An air curtain was designed according to the jet theory of fluid mechanics and the role and feature of air curtain to separate dust in a fully mechanized face.
根据流体力学射流理论，分析了空气幕在综采工作面隔离粉尘的作用，并根据综采工作面应用空气幕隔尘的特点，设计了空气幕。
The author briefly introduces the principle, working face testing and application, effectiveness analysis and Suggestions on outburst control for high pressure grinding water jet technology.
作者简要介绍高压磨料水射流技术防突原理、工作面试验应用、效果分析及建议。
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