This paper describes trouble-shooting and fixing of K-4500blood-cell counter and emphasizes the importance of routine maintenance.

本文介绍了K -4500血球仪常见故障的分析和排除，并强调了日常维护的重要性。

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“I had been looking for my cell phone for three days and would you believe I found it laying on the counter in plain sight?,” Sabin says.

“我一直在找我的手机，找了三天了，但是你相信吗，我发现它就躺在柜台上，”萨宾说，“它就在那儿，我在想我为什么之前没看到它呢？”

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Drugs are available that increase white blood-cell production to counter any damage that may have occurred to the bone marrow, and to reduce the risk of further infections due to immune-system damage.

为了使白血球增多以防护辐射对骨髓的损害，在条件允许的情况下可以注射一些药物，这样能够防止其对免疫系统的进一步伤害。

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The grizzled 55-year-old sits behind a glass counter filled with cell-phone accessories.

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