parent: n.1.父亲;母亲。2.〔pl.〕双亲;祖先。3.(动、植物的)母体,亲本。4.根源,本源。5.保护者。短语和例子one's parents 双亲。 parent-teacher association 【教育】家长会。 aparent bird 老鸟。 a parent company 母公司。 parent substance 亲体,母物。 a parent stem
The connecting force between pipe coupling and connected pipe is resulted from the shape memory alloy ' s recovery stresses during its transformation to parent phase when the alloy is heated with constrains 形状记忆合金管接头对被接管的抱紧力源于形状记忆合金升温相变时,在约束下产生的回复力。