您要查找的是不是：
- 真空点火提前机构vacuum spark advance mechanism
- 离心点火提前机构Centrifugal advance mechanism
- 真空提前vacuum(-)controlled advance
- 机构institution
- 真空提前器vacuum advancer
- 提前to shift to an earlier date
- 真空提前点火控制vacuum advance spark control
- 真空vacuum
- 政府机构government organization
- 分电盘真空提前控制阀distributor vacuum advance control valve
- 研究机构research institute
- 慈善机构charity
- 金融机构money corporation
- 真空包装vacuum packing
- 提前的advanced
- 分支机构embranchment
- 抽真空vacuumize
- 组织机构organization
- 真空度vacuity
- 把期限提前一星期Advance a deadline by one week.
