We have succeeded in commercial production of “PEPA” (phenylethynyl phthalic anhydride) from which high-strength structural polyimide materials can be obtained. The compound is being noted by NASA, the Japan Polyimide Conference, etc. as a key compound for new material development. Application examples: ultrahigh heat resistant materials, molding materials, aerospace materials, etc.
There are some phrases specified, as follows:
By the phrase outline world map we mean, that the world maps on this website have all following common signs -
the surfaces and borders can have quite approximate shapes instead of very precise shapes; the continents on the maps are surrounded with a (by default) black line.
By using the combination of words blank world map , we are meaning, that there are no country borders on a such map.
The words political world map are indicating on this website to an image, which has country borders (also black by default and with the same thickness as the outlines).
Source: The outline world map images on this website were derived (graphically modified) from a colored map image, which is released to public domain ( click here ).
If you have time and opportunity, show it to your instructor to revise. Otherwise, you may estimate it yourself.
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Outline Map Printouts : A-C, A collection of geography pages, printouts, and activities for students.