large sized tractor的意思|示意

The power and oil consumption meter for a tractor of the utility model can match with large and medium-sized tractors to carry out adjustment and maintenance without disassembling a tester;

本实用新型拖拉机功率油耗仪是配合大、中型拖拉机不拆卸检查仪进行调整维修。

Now she has an annual output of 150 thousands transmission shaft assemblies, 20 thousands large and medium-sized tractor drive shafts.

现己形成年产传动轴总成150000根，大中型拖拉机驱动轴20000根。