求翻译：不同项目运动员在不同的阶段体现出来的身体成分的不同特征，可能是由于下列原因所导致的。游泳运动员和长跑运动员开始训练的年龄不同，但都要经历约10后的系统的训练，并且都处于青春发育期，正是脂肪细胞增殖分化的敏感时期。是什么意思？

The reflected body composition athletes of different projects at different stages of the different characteristics, may be caused by the following reasons. Age swimmer and long-distance runners to start training, but to go through the training of the system after about 10, and in puberty, is the pro

Athletes from different projects at different stages in the physical elements of the different characteristics, it may be because the result of the following reasons. Swimmers and Runners start training for different ages, but they all want to experience the system after about 10 of the training, an

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Different players in different phases of the project reflected the different characteristics of body composition, may be caused due to the following reasons. Swimmer and runner started training at different ages, but must go through about 10 of the system after training, and at puberty, it was fat c

The different project athlete the bodily ingredient different characteristic which manifests in the different stage, possibly is because the following reason causes.The swimming athlete and the long-distance race athlete start the age which trains to be different, but all must experience approximate