Improve the grammar of this text: In a few years time, China's aviation industry grew from small to rather large and became able to produce aircrafts of many kinds.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts.
The Chinese government has been trying to improve the quality of the aircrafts