Firstly, analyse the basic principle and process characteristic of Vacuum Freecing-dry.

分析了真空冷冻干燥基本原理与过程特点。

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The process characteristic is that the first draw occurs in a steam box and the second draw between the succeeding drawing roller and setting roller.

其后加工特点是：一级拉伸发生在蒸气浴槽内，二级拉伸发生在第二拉伸辊与定型辊之间。

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In the second part, process condition, operational gist and process characteristic of container airless spraying, container films drying and curing were discussed.

文章第二部分讨论了集装箱无气喷涂工艺条件、操作要点和自动喷漆工艺特点，以及集装箱涂膜的干燥与固化。

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"You may be losing stem cells in the process or changing the characteristic that shows these cells where to home, " says Hal E.

FORBES: Cell makers

"The loop has no characteristic temperature, so there is probably some ongoing process in there - that is our interpretation, " Dr Sakano told the BBC News website.

BBC: Arches Cluster, Leicester

It also lowered the so-called good cholesterol, or high-density lipoprotein (HDL), and it did not enter the cell, a characteristic Medford wanted hisdrug to have, because some of the oxidation process takes place within cellular membranes.

FORBES: Inflamed Hearts