turbo什么意思排列组合英文缩写

2021年1月12日发(作者：车建新)
排列组合英文缩写

【篇一：排列组合英文缩写】


好吧 ，我的牛津高阶英汉双解词典显示的就是组合c代表combination，排列a代表arrangemen t。。。
度娘也有错的时候。。别全信
【篇二：排列组合英文缩写】


因此 ，建议在制订标准时，应明确规定焊接接头热影响区维氏硬度
试验的压痕位置，第一点压 痕位置应在距熔合线约 0 。5mm以内的
过热区内，每一压痕线上每一区域至少 3个压痕，间距为 0 。5～
1mm

17. the hardness distribution of the weld is measured. the
micro-structure of the weld is observed. the results show that
when welding with no preheat, hard martensite could be found
in thehazof the cap weld. in multilayer weld, the hardness
become lower and the micro-structure become ferrite and
bainite.

测定了焊补接头的硬度 分布，观察了相应部位的金相组织，得出：
采用不预热焊补模拟裂纹缺陷，在接头近表面haz区容易出 现淬硬
的马氏体组织，硬度值高，由于多道多层焊道的相互热影响，硬度
降低，组织一般为铁素 体和贝氏体组织；而不预热焊补模拟缩松与
缩孔等缺陷，硬度值不高。

18. the pitting corrosion occurred on the surface existing pits
such as the welding spatter and arc scratch because of the
changes of electrode potential.

19. these results are confirmed by fracture toughness test on
weld coarse grainedhazof high strength steels.

通过对含硬化组织ma组元的高强钢焊接热影响区粗晶区的断裂性能
试验，对上述分析结果进行了验证。

20. weld heat affected zone microstructures of 22simn2tib
ultra-strength steel were thermally simulated by means of
gleeble-1500 machine. polarization measurement of the
quenched zone and tempered zone in 3.5%nacl solution was
conducted respectively with potentionstat/galvanostat solaron
sl1280b.

采用gleeble--1500热模拟试验机模拟了22sim n2tib超高强度钢焊
接接头热影响区的组织，并利用solaron sl1280b恒电位仪测定了