active role
积极任务
热门单词
- abrasion surface
- accetyl value number
- acetate silk
- acetylenyl benzene
- achromatopsia totalis
- acidic dye
- acquired attitude
- acrylic water soluble baking varnish
- active remote sensing
- actuating detector
- acute rheumatic fever
- acyclic
- addiction
- adiabatic apparatus
- adjustable blade propeller runner
- admission valve
- advance angle
- advection
- adverse movement
- aerated water
- aerial photograph converter
