1) multi-stage water film
多级水幕
1.
Research on the characteristics of flue gas desulfurization using double-recycling and multi-stage water film tower;
双循环多级水幕吸收塔烟气脱硫性能研究
2.
Design and evaluation of a double-recycling multi-stage water film tower for flue gas desulphurization;
双循环多级水幕脱硫塔的设计和性能测试
3.
Research on the characteristics of flue gas dust removal and desulfurization using double-recycling and multi-stage water film tower
双循环多级水幕吸收塔烟气除尘脱硫性能研究
2) multi stage liquid curtains
多级液幕
3) multi-stage dewatering
多级降水
1.
Soil nailing wall with multi-stage dewatering system for deep foundation pit and its application;
深基坑深层多级降水土钉墙支护及应用
4) multiple stage dewatering
多级排水
5) multistep washing
多级洗水
补充资料：绿幕
绿幕
绿 幕
绿色，荷花型。初开青绿色。茎短直立。梗直。叶圆大，株型半开张，分枝力强。花期早。
green,hydrangea_shaped;staight stems,long stalks,
large leaves in yellowing green,sturdy,late flowering.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。