Various running and jumping exercises on soft plastic track have been part of the training contents of sprint and other track and field items.
软性塑胶跑道上的各种跑与跳的练习，已成为短跑及其它田径项目训练内容的一部分。
In the paper a personnel neutron dosimeter based on a CR-39 plastic track detector registering heavy recoils and alpha particles is described.
本文叙述了一种用于测量中子剂量的“直接相互作用”型的CR - 39塑料反冲径迹个人中子剂量计。
In the paper a personnel neutron dosimeter based on a CR-39 plastic track detector registering heavy recoils and alpha particles is described.
本文叙述了一种用于测量中子剂量的“直接相互作用”型的CR - 39塑料反冲径迹个人中子剂量计。
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