求翻译：Chemical properties of composts是什么意思？

堆肥的化学性质

堆肥及培养土的化学属性

天然肥料化工物产

堆肥的化学特性

At the end of an academic report meeting, a reporter asked if Stephen Hawking was losing too much, hawking's face was still full of tranquil smile, his fingers can activities struggling to hit the keyboard. So, with the synthesizer issued standard syllable breaks, the projection of slow and visible