System of techniques的用法和樣例：
例句
- A graded forest fire early warning and response system and a fire risk evaluation system have been primarily established.
初步建立森林火險分級預警響應和森林火災風(fēng)險評估技術(shù)體系。 - On the basis of this, the fishery products quality traceability technology system was firstly constructed in China.
并以此為基礎，首次在國內建立了水產(chǎn)養殖產(chǎn)品質(zhì)量追溯技術(shù)體系。
