- 重点词汇
- 汽车
car; automobile; auto; wheel; vehicle; motor vehicle; motorcar; set of wheels; motor car; automotive; motor; motoring; by car
- 密封
seal; seal up; seal airtight; hermetic seal; sealed; airtight; hermetic; under seal; hermetically sealed
- 系统
system; setup; channel; scheme; network; machinery; systematic; systemic
- 技术
technology; technique; skill; art; craft; know-how; science; technical; technological; skilled; techno-; -manship
- 产品
product; work; output; produce; jobbie; widget; manufacture
- 展览会
exhibition