1) primary recycled water
初级再生水
1.
Two problems of primary recycled water reuse were erosion and microorganisms control.
初级再生水回用过程中所要解决的两个难题是腐蚀和微生物的控制。
2) Second-grade reclaimed water
2级再生水
3) Third-grade reclaimed water
3级再生水
5) elementary-level foreign students
初级水平留学生
1.
Facing more and more elementary-level foreign students learning Chinese in China, we need to do some study for them.
面对越来越多在中国学习汉语的初级水平留学生,我们急需进行相关的研究。
6) primary recrystallization
初级再结晶
补充资料：初级
1.最初阶段的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条