grozing iron
plural of raing
A plumber's tool for soldering lead pipes. / A tool used in making stained glass windows; a pair of groziers.
A spheroid of pancreatic stem cells
A process which directly combines copper and metallic zinc to form an alloy.
配管工は検査前に古い鉛管の継ぎ目をはんだ付けするために鉛管用のはんだごてを手に取った。
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