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5The same properties also contributed to Nazi Germany’s strategy against agar’s scarcity, which — besides being supplied from Japan by submarine — relied on large pre-war stocks and on recovery methods to reuse bacteriological agar by autoclaving (boiling at around 121°C, 250°F, in a pressurized container for 30 to 60 minutes), thus liquefying and sterilizing the jelly, before purifying it again.
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Crawford - whose parent company is based in the US - was approached for comment, but the firm referred the BBC to the NHS.，推荐阅读WPS下载最新地址获取更多信息
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