- educationforagriculturalmechanizationscientificresearchofagriculturalmechanizationWearedeterminedtorealizethemechanizationinagriculture.Sofarwehavenottouchedonthemechanizationofagriculture.Despiteincreasingmechanization,lifeinthecold,dank,darkinterio...
- 25200