The former contains language pre-compiling, SQL statements and process statements analyzing and creating the intermediate code.
前者含语言预处理、SQL语句和过程语句分析，及中间代码生成等。
2
To treat high concentration of caprolactam sewage more effectively, up flow type of anaerobic sludge reactor was used to pre-treat before the former A/O system.
Then, the reinforce project and the stress of the pre-stress cable have been simulated by the UDEC, which have not only good effect but validate the anchorage mechanism in the former chapter.