无极加强接点继电器
neutral relay with heavy duty contact
磁带片接片机
splicer for magnetic film
B柱加强板
B-column strengthened sheet
B-pillar reinforced panel
DNA初免和加强免疫策略
DNA vaccines prime-boost strategy
Roth-Erev加强学习法
Roth-Erev reinforcement learning method
半圆空心加强材
falf round stiffener with hollow core