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1 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》레깅스룸견적よ레깅스룸ago레깅스룸メ강남레깅스룸eighty 선릉레깅스룸κ선릉레깅스⒲레깅스룸メc선릉레깅스룸literary"
$15 Geiger-Muller Counter for Beta/Gamma/XRay
Project
by
GH
An inexpensive Geiger counter that can detect several kinds of ionizing radiation using a surplus Soviet tube and a one-use camera circuit
90
9