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non-perforated
 non-perforated
tech. 未打过孔的
| interval
 interval
gen. 距离
hydroel.st. 区间; 间歇
interntl.trade. 距度
manag. 组距; 间断时间
met. 空隙; 时隙; 范围

to phrases
non-perforated
tech. 未打过孔的
non-perforated interval
: 2 phrases in 2 subjects
Oil / petroleum1
Space1