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单词
red metal
释义
red metal
[`red `med·ǝl]
METALLURGY
A copper matte having a copper content of about 48%.
随便看
Rowland grating
Rowland mounting
Rowland ring
rowlock
rowlock arch
rowlock course
row order
row pitch
row shooting
roxarsone
royal jelly
RPE
RPG
rpm
RPN
r-process
rps
RPV
RQ
RR Lyrae stars
r-RNA
rs
RS-232
RSA algorithm
R scan
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