经过调研和试制，我们在啤酒生产过程中，按3 ~ 5 %的比例加入处理后的苦瓜汁，制成苦瓜保健啤酒。
Based on research and trial make, we make balsam pear health beer by mixing 3-5% balsam pear juice with the beer in the producing process.
无须跑尺自计视距仪是一种新式的测量仪器，经过研究，我们已初步试制成功。
The no staff and self-reducing tacheometer is a new type of surveying instrument designed and constructed by a group of teachers and students of our department.
经过试验和鉴定表明：试制是成功的。
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