破约汇率;
Objective To analyze the dose rate effect and potentially lethal damage repair in DNA double strand break repair deficient murine cells ( SCID) irradiated by γ ray.
目的探讨γ射线照射后小鼠DNA双链断裂修复缺陷细胞(SCID)的剂量率效应和潜在致死性损伤的修复。
The industrial added value growth rate may fall to break the record.
工业增加值增速的回落也有可能打破历史纪录.
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