Vietnam and China agreed to normalize diplomatic relations in 1991.
1991年越南和中国同意恢复正常外交关系。
Vietnam and China agreed to normalize diplomatic relations in 1991.
1991年越南和中国同意恢复正常外交关系。
The oils were analyzed by GC-MS and percentages were obtained by normalized peak areas, where main components are nootkatone, D-limonene, osthole, cis-linaloloxide, furfural, and trans.
用气相色谱-质谱(GC-MS)联用技术分析,鉴定出主要成分为圆柚酮、D-柠檬烯、王草素、顺式-芳
醇氧化物、糠醛、反式-芳
醇氧化物。
What is obtained with the forging waste heat normalizing and controlled cooling technique is the coarse stable structure in a 20CrMnTi gear, but its cutability is good.
余热正火和常规的正火处理后,再经同样的工艺进行渗碳、淬火和回火处理,试验证明:其渗层和心部的组织、晶粒度及机械性能均相同。
声明:以

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