Presser sending adopts pressing shoes with press roller structure, suitable for processing great areadistortion board.
压料输送采用压靴带压辊结构，较大面积变形的板材亦可加工；
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The very gravity distortion also effects the space-time continuum in the area, and creates a dimensional aperture field very similar to what occurs in the poles.
An alternative and arguably more rigorous approach would be to repeat the exercise using an "equal area" projection that shows the countries' areas correctly while minimising shape distortion.