Polar filler are used in normal phase chromatographic system, among which, silicon gel is the most commonly used.
正相色谱系统使用极性填充剂，常用的填充剂有硅胶等。
The manufacture cost which approaches normal lead-acid battery level, is reduced by 30%-50% compared with the existing dual-pole polar plate lead-acid battery.
制造成本比现有双极型极板铅酸电池下降30% - 50%，接近普通铅酸电池水平。
In normal conditions there are no notable amounts of other polar molecules in the air except water vapour, especially in areas where people work.
在通常条件下，在空气中除了水蒸汽外，没有其他极性分子的影响需要考虑，特别是在人们工作的区域。
Particularly suited to operating with fixed and mobile polar extensions, ideal for small and large pieces with normal operating air gaps, also with limited thicknesses.
特别适合操作固定和移动延伸块。大小工件理想的操作空间和有限的厚度。
Particularly suited to operating with fixed and mobile polar extensions, ideal for small and large pieces with normal operating air gaps, also with limited thicknesses.
特别适合操作固定和移动延伸块。大小工件理想的操作空间和有限的厚度。
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