Safe time limit of occlusion 阻断安全时限
Objective: to probe into the safe time limit of high concentration oxygen therapy in rabbits with hemorrhagic shock in high altitude.
探讨高浓度氧疗对高原失血性休克家兔作用的安全时限。
The PBC and SAFE took some temporary measures to limit buying foreign for some capital account transactions in 1998 according to the special situation at that time.
1998年，中国人民银行和国家外汇管理局根据形势需要，在资本项目外汇管理方面采取了一些临时性的购汇限制措施。
The bridge rotation construction craft is the efficient method especially in the gorge, cliff, or arduous landform for its simple erection equipment, short time limit, safe construction.
桥梁转体施工工艺是在深山峡谷、悬崖陡壁、地形险峻的桥位上架设桥梁的有效方法。
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