This is a paint.net filetype plugin for loading SVG (Scalable Vector Graphics) and its compressed variant SVGZ files. SVG files can be rendered as a flat image or each element/group on a separate ...

Additionally, ammonia’s low boil-off losses make it well-suited for transport, in contrast to liquid hydrogen’s 0.3% per day ...

对称性是物理学中非常重要且基本的概念，据称还可能是与能量比肩的、最基本的两个物理概念之一。建立在对称性原理上的诺伊曼原理 (Neumann's Principle) ...