二维样品样品相关技术
2D sample-sample correlation spectroscopy
加强型小型化可热插拔光收发模块
SFP+ optical transceiver module
小型小功率直流电磁继电器
miniature low power electromagnetic DC relay
小型型钢
small-sized section steel
light shape
small section
merchant bar
Small-section
light section
小样品非连续异形面
mini-sized irregular-shaped materials