目的提高献血者血液检测准确度，最大限度减少人为因素造成因输血感染病毒性疾病的发生。
Objective to enhance the detective accuracy of blood donor, and to avoid the occurrence of viral disease transmission associated with blood transfusion caused by human factor.
对油茧成因及防止方法进行了试验研究，发现油茧形成因素，主要因幼虫、蛹体壁破损，其伤口在烘茧干燥过程中溢浊所造成。
Through experiment and research of the factors causing oily cocoons, it is found that oily cocoons are caused by the oil spilt out from the cocoons resulting fom injured larvae or pupae during drying.
人们提到了多个造成这种没有很好的遵守核心能力要求的促成因素。
Many factors have been cited as contributing to this poor compliance with core capacities.
中国城市交通拥堵的成因既有客观方面因素的制约，但更大程度上是由于交通行政管理不完善造成的。
The reason of Chinese city's traffic jam have objective factor, but the more important is the traffic management isn't perfect.
中国城市交通拥堵的成因既有客观方面因素的制约，但更大程度上是由于交通行政管理不完善造成的。
The reason of Chinese citys traffic jam have objective factor, but the more important is the traffic management isn t perfect.
中国城市交通拥堵的成因既有客观方面因素的制约，但更大程度上是由于交通行政管理不完善造成的。
The reason of Chinese citys traffic jam have objective factor, but the more important is the traffic management isn t perfect.
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