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The dugong population has been reduced by human activities and ecosystem deterioration.
中文意思:
儒艮资源减少的主要原因是受人类活动加剧的影响,以及生态环境不断恶化,威胁着本种的生存。


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The dosage of Myodil for adult pelvis lymphography should not be less than 9 ml. 经足淋巴造影碘苯酯总量,在成人一般不应少于9ml。
The draft descriptor theory of adding salt industrial into sulfuric acid to corrode steel and applying in the practice. 简述硫酸溶液中添加工业用盐转变成两种酸混合溶液,腐蚀钢(酸洗)的理论及在实践中的应用。
The drawing system for wave,water flow and silt deposit, which is based on N—88 BASIC of NEC PC—980 FC micros,has been develo- ped. 波浪、水流、泥沙淤积绘图系统是利用 NEC PC—980FC 微机所提供的N—88 BASIC 语言而开发的。
The dry cerumen of Han was 9. %, and damp cerumen .7%. 汉族干型耵聍为9. %,湿型耵聍为.7%。
The drying kinetics of three variants of milk powder( full-cream milk powder, full - cream sweeten milk powder and milk powder for babies) was studied in the after-dryer vibro-fluidized bed dryer, and then made out the feasible processes. 通过实验研究二级干燥系统中振动动流化床干燥全脂淡乳粉、全脂甜乳粉及母乳化乳粉的性质,确定了合适的干燥工艺,并比较了 种乳粉振动流化干燥的不同特点。
The dugong population has been reduced by human activities and ecosystem deterioration. 儒艮资源减少的主要原因是受人类活动加剧的影响,以及生态环境不断恶化,威胁着本种的生存。
The duration of laparoscopic excision of a prostatic utricle was 00~0 min and intraoperative bleeding was 0~0 mL. 腹腔镜手术时间00~0min,出血约 0~0mL,术后皮管引流d,留置导尿管、周。
The dyeing fastnesses of the MCT/VS group dyes were satisfactory, which were equal values with the lanasol dyes. MCT/VS染料在氯化羊毛染色后的湿牢度与兰纳素染料在该类纤维上染色的湿牢度相当,能够满足要求。
The dynamic change of chlorophyll, carotenoid, cyanin and flavonoid of variously colored fruit sweet pepper varieties is studied. 研究了个果色不同的甜椒品种其果实叶绿素、类胡萝卜素、类黄酮和花青苷等色素在转色期的变化动态。
The dynamic split tests of marble using both Brazilian disc and flattened Brazilian disc were performed at high strain rate with split Hopkins pressure bar(SHPB) of 00mm diameter. 利用直径00mm的分离式Hopkinson杆对大理岩巴西圆盘和平台巴西圆盘试样进行了动态劈裂实验。
The early Chinese cabbage ( Hybrid No ) was found to senesce sooner than the late one ( IZ-8) in terms of the beginning arid rate of chlorophill loss. 球白菜早熟品种小杂的叶绿素降解时间先于中晚熟材料IZ-8,前者的降解速率也大于后者,这表明前者不如后者耐贮.
 
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