Linux kernel newbies em português

Haomei concrete batching plant is widely used in infrastructure. Many users just know how to use it, and don't know how to evalute the quality.
There is several major components we need to concern:
1. If the Haomei concrete mixer has self-loading mixing drum, then its discharge buckle ring runout does not exceed 1% of the inlet diameter,
2. The operation of the transmission system, with flexible operation, no abnormal noise;