tangle vt.,vi. (使)缠结,弄乱,(使)纷乱,(使)纠缠;笼络;诱陷;(使)受牵累;〔美俚〕吵闹,打架;竞争 (with)。 n. 1.缠结,纠缠,纠纷;混乱。 2.〔美俚〕吵闹,打架;拳赛。 3.海底动植物采集器;海带(类)。 His thoughts were in a tangle. 他的思想陷于紊乱。 n. -r
The refinement mechanism of grain at room temperature can be described as dislocation tangle and dislocation node form in the initial grain with severe plastic deformation , then the dislocation node form subgrains or grains . subgrains become grains by snipping of the subgrain boundaries under the action of shearing stress 室温ecap细化晶粒的机理可描述为:随着强烈塑性变形的进行,原始晶粒中产生了很多位错缠结和位错胞,进而位错胞崩塌变为亚晶或晶粒,亚晶粒在后续ecap剪应力作用下,通过亚晶界被剪断而变为晶粒。