eld lang-fa">شروع</span>
          <span class="lang-field lang-en">Start</span>
          <span class="lang-field lang-cn">开始</span>  
        </button>&nbsp;
        <button id="btn-cancel" class="btn btn-outline-secondary btn-sm rounded-2 fw-bold d-none" type="button" onclick="cancelScan()">
          <span class="lang-field lang-fa">لغو</span>
          <span class="lang-field lang-en">Cancel</span>  
          <span class="lang-field lang-cn">取消</span>
        </button>
        <button i