... 保全工 engineering operative; fixer; maintenance man 保全区 preservation zone 保全室 maintenance room ...
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natural preservation zone 自然保护区
nature preservation zone 自然保护区
partial preservation zone 部分保留区 ; 脊髓功能部分保留区
Yile Preservation Zone 冶勒保护区
preservation zone of the sea 海洋特别保护区
zone of partial preservation 部分保留区 ; 部分保留带
It is divided into preheating zone, heating zone, heat preservation zone and natural cooling.
炉体分为预热区、加热区、保温区、缓冷区。
The main factors influencing the gas preservation condition includes the fault amplitude, fault fragmented intervals, fault surface dip, and the position of fracture cavity system in the faulted zone.
大断裂影响缝洞系统保存条件的主要因素包括：大断裂断距、断层上消失层位、断面倾角、盖层厚度以及缝洞系统所处断裂带位置等。
The diagenesis-porosity evolution history is beneficial to porosity preservation of Shahejie Formation at great depths in the vicinity of Qi'nan fault-step zone, Bohai Bay.
歧南断阶带的成岩-孔隙演化模式表明，研究区内特定的成岩-孔隙演化史有利于深层沙河街组二段砂岩孔隙的保存。
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