只有这一小段也不能判断翻译的合适不合适，大体的意思应该是没有问题的，凑合着看吧。。。Detection and Chemical Identification of PHB 聚丁酸酯的检测和化学鉴定 We isolated 126 colonial morphotypes of aerobic heterotrophic bacteria, 72 at the polluted site and 54 at the pristine 我们分离了126株后期感染的不同形态的好氧异养菌，其中污染区分离72株，洁净区54株。 Phase contrast microscopy indicated that up to 25% of the morphotypes had well-defined, brightly refractile cytoplasmatic inclusions (F 2a, b, c), suggesting accumulation of PHB 显微镜下的阶段性对比显示高达25%的菌体含有明显的胞浆内容物，内容物有高的折射率，可推断为聚丁酸酯沉积物。 We selected 14 PHB-producing strains as positive lipophilic strains (F 2d–i) 我们选择了14株产生聚丁酸酯的菌株作为阳性亲酯性株。 PHB-producing strains were 80% more abundant in the microbial mat occurred in the sediments of the polluted site than in the sandy bottom of the pristine 在污染区菌席样沉积物中分离出的能够产生聚丁酸酯的菌株比在洁净区沙质沉积物中的要多80%以上。 Production of PHB was confirmed by chemical extraction, obtaining significant amounts of crystalline, thermoplastic 我们用化学提取法确定了聚丁酸酯的产生，提取产物为大量的水晶状的有热可塑性的二元共聚体。 Chemical extraction was successful for nine strains as presented in F Results from each strain at 48 h (cell DW and percent of PHB production) are presented in F 9株菌株的化学提取情况见表3，该表显示了48小时内各菌株细胞DW（这个是什么值来着？？？胞内能还是别的什么？？？）和聚丁酸酯产生的百分比情况。
火星的星星
