Direction and prospcets of development of rosin based size in China are proposed on the basis of historieal expericnces of de-velopment of sizc in China and abroad.是什么意思_Direction and prospcets of development of rosin based size in China are proposed on the basis of historieal expericnces of de-velopment of sizc in China and abroad.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句