trong m?t kho?n th?i gian nh?t ??nh tr??c khi ?i?u ch?nh, t?t nh?t b?n nên dùng ph??ng pháp t? ??ng ho?c xây d?ng hàm ?? ki?m tra v?i d? li?u.Compact and rugged, this oscilloscope is perfect for industrial electrical and electro-mechanical machines troubleshooting and routine maintenance purposes.Trong tr??ng h?p b? h?n ch? truy c?p, b?n nê