If you spend more of your time reading rather than jacking around.
只要你多花点时间读书，而不是到处瞎混。
For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
为慎重起见，拟采用管幕保护下的顶进法施工。
Maintenance standards for civil aircraft. unit 2: ground safety. part 34: civil aircraft jacking.
民用航空器维修标准。第2单元：地面安全。第34部分：民用航空器的顶升。
Jacking-up apparatus for high pressure oil.
高压油顶起重装置。
Jacking-up apparatus for high pressure oil.
高压油顶起重装置。
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