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partial penetration
ecol. 部分穿透含水层
eng.geol. 局部渗透; 局部渗入
oil 打开程度不完善; 局部钻开油层; 未焊透
space 局部贯穿[侵彻]
tech. 部分穿透
partial penetration: 2 phrases in 2 subjects
Nuclear and fusion power1
Technology1