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.Be the main to overview this item Function with self-assurance using this type of oscilloscope which offers simplified screening, a lot more Perception, more quickly electro-mechanical troubleshooting,