Carbon and sulfur in low and middle alloy steel were determined with SHIMADZU PDA - 5017 direct reading spectrometer by using the PDA (Pulse height Distribution Analysis) method.

介绍了应用日本岛津pda - 5017型光电直读光谱仪，采用脉冲分布测光法(PDA法)，测定了中低合金钢的碳和硫。

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The key technologies of video display, equipment control with PDA based on wireless network are implemented, which makes PDA to be a convenient tool in MFDS.

解决了基于无线网络的掌上电脑视频获取与显示、设备控制等关键技术，使掌上电脑成为设备监控与故障诊断系统中的一种便捷的工具。

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The viscosity characteristics of PDA in water were investigated. The reduced viscosity increased as the mass concentration of PDA solution decreased.

探讨了PDA在纯水中的黏度特性，所制备的PDA呈典型的高分子电解质特性，稀溶液的比浓黏度随质量浓度变稀而增大。

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And today, if you look at the cell phone and the PDA and the PC and notebooks, desktops, there's a pretty clear distinction among those various product categories.

今天，如果看手机,掌上电脑，个人电脑，笔记本电脑，和台式电脑，就会发现很明显的差别,存在于不同的产品之间。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

The phone had been rumored as far back as 2002 when Jobs downplayed talk of a new PDA, suggesting that the next PDA would be a phone, anyway.

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On one hand it sold the PDA itself, and on the other it was attempting to build a software business by licensing its PDA software to companies with which it would essentially compete on the hardware side.

FORBES: How Palm Lost It

Some shoulder-strained road warriors might replace their heavy laptop with a PDA-phone, collapsible keyboard and micro-projector.

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