twin plane

The formation mechanism of the Brazil twin On-X plane of synthetic quartz

人工水晶-x面上巴西双晶的形成机制

The plane is an eight-seater with twin propellers.

这架飞机有8个座位，靠双螺旋桨推进。

It is proposed that ( 0001) plane of graphite-microcrystal with screw growth and its ( 1012) or ( 1013) plane with twin-branch growth are the model of spherulitic graphite growth.

文中提出：石墨微晶（0001）面螺旋生长和（1012）或（1013）面事晶分枝是球状石墨的生长模式。

Its grain refinement mechanism may dislocation produces on different slip plane and form twin crystal. These twin crystal tangles each other.

其晶粒细化机理为：位错在不同滑移面上排列后，形成挛晶，然后这些孪晶进行交割，最终将晶粒细化而产生纳米晶。

Television footage showed the tail of the twin-engined propeller plane visible amid the burning wreckage.

电视画面显示在燃烧的飞机残骸中可以看到这架双引擎螺旋桨飞机的尾巴.