area exchange
区交换区域电话局
热门单词
- angle incidence indicator
- angle in a circular segment
- angle generator
- angle hinge
- angle increment
- angle indicator
- angle iron
- angle iron ring
- angle iron shearing machine
- angle iron stiffening
- angle insulator
- angle iron bending machine
- angle jamming
- angle joint
- angle jaw tongs
- angle lap
- angle lap stain method
- angle lapped specimen
- angle lever
- angle locking pin
- angle lever shears
