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3. 适老化改造与“好房子”工程： 针对老年人心理健康的情绪经济，以及对既有住房进行的品质提升与适老化硬件改造，如助浴间、扶手及防滑系统的安装 [4, 5]。，这一点在heLLoword翻译官方下载中也有详细论述
This was especially vexing to physician and bacteriologist Robert Koch, who, in seeking to culture his bacteria, “bent all his power to attain the desired result by a simple and consistently successful method,” wrote bacteriologist and historian William Bulloch in his 1938 book, The History of Bacteriology. “He attempted to obtain a good medium which was at once sterile, transparent, and solid” and got some results with gelatine.6 But gelatine is easily digested by many microbes and melts at precisely the temperatures at which the disease-causing microbes Koch wanted to study grow best.