twin-plane boundary

Tb-Dy-Fe twin crystal or polycrystal magnetostrictive materials are normally employed as driving unit in magnetostrictive actuator, yet the crystal boundary and twin crystal structure in the Tb-Dy-Fe materials hinder the movement of domain walls so that the displacement output under low magnetic field is rather small.

磁致伸缩型微位移致动器通常采用多晶或孪晶结构材料作为驱动单元，由于晶界和孪晶界对畴壁的移动具有阻碍作用，其低场下的位移输出较小，调控精度受到较大影响。

Investigation of the inlet and outlet boundary conditions in numerical simulations of twin-screw extruders

双螺杆挤出机流场数值模拟中流道进出口边界条件的探讨

The induced martensite firstly nucleated in parent austenite intergranular and twin boundary.

应力诱发的马氏体首先在原奥氏体的晶界和孪晶界形核.

These lath martensite first nucleates in parent austenite intergranular and twin boundary.

应变诱发马氏体首先在原奥氏体晶界和孪晶界形核.

Furthermore, there are quite many growth defects-Frank dislocations near the Ni twin boundary.

此外, 在Ni孪晶界附近存在较多生长缺陷 ─ ─Frank位错.