public ThietBi(string ma_TB, LoaiThietBi LTB) { this.ma_TB = ma_TB; this.LTB = LTB; }
public ThietBi(ThietBi TB) { this.ma_TB = TB.ma_TB; this.LTB = TB.LTB; }
public LoaiThietBi(LoaiThietBi LoaiTB) { this.ma_LoaiTB = LoaiTB.ma_LoaiTB; this.ten_LoaiTB = LoaiTB.ten_LoaiTB; }