Heat preserving furnaces 保温炉 ; 保暖炉
Preserving 防护 ; 坚持的 ; 保护
Preserving Natural Resources 保护自然资源
preserving duties 维持关税
extremely efficient in preserving heat 保温性强 ; 耐热性强
wood preserving oil [木] 木材防腐油
beer preserving agent 啤酒防腐剂
wood preserving [木] 木材防腐
measure preserving transformation [数] 保测变换
Preserving Method 保存方法 ; 保管办法
Because there were so many complicated forms which were not standard about the linear map preserving positive definite matrix on Hermitian matrix space.
Hermite矩阵空间上保持正定的线性变换形式复杂多样。
参考来源 - 一类矩阵空间上的保持问题At the present. it is facing with many difficulties among which banks' non-performing loans is the most serious one. Therefore, systematic research on preserving non-performing loans is of both theoretical and practical significance.
当前，国有商业银行发展中面临的突出问题是存在大量的不良贷款，对国有商业银行信贷资产保全进行研究具有重大的理论和实际意义。
参考来源 - 国有商业银行信贷资产保全问题研究Browning and rotting are the main obstruction in preserving litchi fruit.
果皮褐变与果实腐烂是采收后荔枝果实贮运保鲜的主要障碍。
参考来源 - 荔枝果皮褐变机理与保鲜技术研究进展·2,447,543篇论文数据，部分数据来源于NoteExpress
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