Lactide is the midbody for the preparation of poly(lactic acid), the ratio of lactic acid to lactide is low and hamper the extensive application of PLA.
There are environmentally friendly alternatives like polylactic acid plastic, or PLA, based on sugar from maize and sugarcane -- but they are more expensive.
The tears coursed down his cheeks when Zeng Jiafu, 22, finally met with the PLA soldier who took him out of that tough time at the ceremony of new recruits.
Lang Zheng, a 3-year-old boy famous around China and even the world for saluting his PLA rescuers from the rubble of the earthquake, now enjoys a happy childhood in school.