twinning

The twinning of Leeds and St Mary was formalised at a function held last week.

在上周举行的典礼上，利兹市与圣玛丽市正式缔结为姐妹城市。

Gross crystalline imperfections like twinning are apparent to the unaided eye.

粗的晶体不完整性,如孪生体可用肉眼看出.

Identical twinning can begin only inside the Fallopian tube.

同卵孪生可能只在输卵管内开始发育.

Town twinning agreements encourage people from the two towns to visit each other.

姊妹城市协议鼓励两个城市的人们相互参观.

N o electrical or optical twinning shall be allowed in usable zones.

可用区内不允许存在电学或光学双晶.

However, twinning in cattle does not occur very often.

然而, 牛犊的孪生现象不会经常发生.

Early ductile deformation is characterized by dislocation glide , twinning displacement and recrystallization, forming schist and mylonite.

早期韧脆性变形作用是以位错滑移、双晶作用和重结晶作用等变形机制为主, 形成各种类型的片糜岩.