?齿条齿轮式千斤顶

... Rack-pinion jack 齿条顶升器 rack and gear jack 齿条齿轮式千斤顶 rack-operated jack 齿条传动起重器 ...

?齿条

... rack and gear drive 齿条-齿轮传动 rack and gear jack 齿条-齿轮式千斤 rack and pinion jack 齿条-小齿轮千斤顶 ...