Firstly, formula of stream tube method was summarized including single disk multi-tube model and double disk multi-tube model.

首先，对流管法计算公式进行归纳总结，包括单盘面-多流管模型和双盘面-多流管模型。

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The experiment is conducted to test the flowing characteristics of the foam fluid in porous media injected by the long slim tube model.

通过长细管模型进行了注入泡沫流体在孔隙介质中的流动试验。

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The adiabatic capillary tube model was established based on energy conservation, mass conservation and momentum conservation equations.

基于能量守恒、动量守恒、质量守恒方程，建立描述绝热毛细管特性的数学模型。

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Samsung's Vacuum Tube Soundbar (model HW-F750) is the first soundbar to feature a built-in vacuum tube to maximize sound quality, and is the world's first soundbar that can wirelessly connect with a TV via Bluetooth.

ENGADGET: Samsung introduces its CES audio hardware, claims a world first

Samsung's Vacuum Tube Soundbar (model HW-F750) resolves consumers' desire for pure power and warm, natural sound by integrating a vacuum tube amplifier into a soundbar for the first time.

ENGADGET: Samsung introduces its CES audio hardware, claims a world first

The version found in a house in Hawthorn Street in west Belfast is an older model with a wooden stock instead of the metal tube in later versions.

BBC: Worn and rusting rocket launcher still capable of killing