Objective To explore the influence to the air particle in the pharmacy intravenous admixture by different methods of drug preparation.

目的探讨不同的备药方法，对静脉输液配置室内空气微粒的影响。

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Out of 28 ranked metrics, the "Show me State" breaks the upper 25 only five times, with 16th in air particle score being its highest ranking.

在28项指标中，不轻信州仅有5次打破25项，可吸入颗粒以第16位排名是其他的最高的。

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This paper mostly introduces a method for computing dust separation efficiency of the vortex tube in the engine air particle separator of helicopter.

本文介绍了直升机发动机进气防砂装置核心元件—涡旋管的砂尘分离效率计算方法。

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The group's recent "State of the Air" report said Pittsburgh has the worst short-term fine particle pollution in the country.

VOA: special.2009.07.13

This may create enough air turbulence to push a viral particle from landing on your face and mucous membranes.

CNN: Commentary: Flu and your health on a plane

The ALA assessed levels of ozone pollution, more commonly known as smog, and levels of particle pollution, or air-born toxins that can potentially be lethal if inhaled at high enough levels.

FORBES: List: America's Most Polluted Cities

What ails Modesto is what ails Bakersfield (No. 1), Hanford (No. 3), Fresno (No. 4) and other small Central Valley cities (the Valley accounts for all the California cites on the list aside from Los Angeles): heavy doses of nitrogen oxide and hydrocarbons stemming from gasoline, chemical processing, paints and other industrial byproducts that harm the ozone and release particle pollution into the air.

FORBES: The Worst Cities In America For Your Lungs