... 直接晶化法 direct-nanocrystallizing method 直接时效 direct ageing 直流磁场 direct magnetic field ...
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In this paper the properties and structure characteristics of GH4133B alloy precision die-forgings by the present die forging process, and by direct ageing and preheat treatment are introduced.
叙述了现行工艺模锻的GH4133 B合金精化模锻件的性能和组织特点；叙述了直接时效、添加预备热处理精化模锻件的性能和组织特点。
WHO is working on three areas with a direct impact on ageing?
世卫组织在三个方面开展工作，这些方面与老龄化直接相关。
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