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Even a single night of road traffic noise, at levels that are typical of those living in a city, causes stress to the heart and blood vessels
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Елизавета Гринберг (редактор)
But agar’s superior qualities come with complex chemistry. “To speak of agar as a single substance of certain (if known) chemical structure is probably a mistake,” wrote phycologist Harold Humm in a 1947 article. According to the Food and Agriculture Organization of the United Nations, agar is merely recognized as “a hydrophilic colloid extracted from certain seaweeds of the Rhodophyceae class.” In terms of its actual composition, agar is mostly a combination of two polysaccharides, agaropectin and agarose, which themselves are complex and poorly-characterized polysaccharides made mostly (but not exclusively) from the simple sugar galactose.8
其代表企业包括英伟达（GPU）、博通（ASIC）、台积电（芯片制造），商业模式以向中下游销售算力硬件为主，不仅需求刚性，且技术壁垒极高。