twin crystal

基本解释

It is mainly because that dislocation slides easily within large twin crystal, which leads to the decrease of strength and the increase in plasticity.
主要是位錯在大孿晶中易於移動，從而造成強度下降，塑性提高。
At the time of deformation reached 40%, the appearance of the crystal changed greatly: the size refined, boundary turned clear, second phase disappeared and twin crystal structure appeared.
變形量爲40%時，軋板的晶粒形貌發生了顯著變化，晶粒變得細小，晶界清晰，第二相完全消失，竝出現孿晶組織。
In this paper the morphology of the ferrite twin deformation, the conditions of a thick twin crystal formation, and the various factors to decide the quantity of twins produced are analyzed.
用掃描電鏡觀察鉄素躰形變孿晶的形態，對厚片孿晶的形成條件及決定孿晶數量的各種因素進行分析。

Also on display at the booth will be the entire SuperTooth collection of speakers (DISCO TWIN, Disco2 and Disco), hands-free car kits (HD-VOICE, Crystal and HD), and recently introduced Melody headphone.
ENGADGET: SuperTooth launches the $199 Disco Twin and $89 HD Voice at CES (video)