Shaping of double curved face lamella has been hard nut to crack in manufacture trialwork.
在汽车车身试制领域，双曲面薄板零件的成形一直是试制工作的难题。
2
Based on a lot of spot measurement and trialwork, the customary rule of slab design of the heavy plate was modified.
在大量现场测量与试验基础上修改了工厂原有坯料设计规则。
3
If no time limit is specified in the relevant law, the information relating to the trialwork shall be publicized in a complete and timely manner within a reasonable time limit.