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第二级
 第二级
avia. second stage
earth.sc. second
| 信息
 信 息
org.name. Information
 信息
gen. info
comp. file
environ. information
hydroel.st. information

to phrases
第二级 dì’èrjí
avia. second stage
earth.sc. second
tech. secondary; second order; second-stage
第二级: 83 phrases in 23 subjects
Agriculture4
Automobiles3
Aviation1
Business1
Earth sciences3
Economy8
Electronics9
General5
International trade2
Life sciences1
Mathematics2
Metallurgy7
Multimedia1
Oil / petroleum1
Project management1
Refrigeration1
Securities2
Space7
Sports2
Statistics2
Submarines1
Technology18
Water resources1