◎真空封口袋子的要求：紋路袋，兩邊有折角的袋子
◎單封口：普通平面袋（對袋子沒有要求）
◎真空封口操作步驟：插上電源，打開真空保鮮機上蓋，把裝有食物的真空袋平整的放入保鮮機的真空密封倉內，蓋上上蓋，扣上兩邊的塑膠扣，按下藍色的真空封口按鍵，機器自動抽真空，封口。封口完成後，輕扳排氣閥排氣，打開塑膠扣，拿出真空包裝好的食物，操作完成
◎單封口步驟：插上電源，打開真空保鮮機上蓋，把裝有事物的真空袋口平整的放在封口帶上方，蓋上蓋子，左手長按單封口按鍵，右手輕按保鮮機上蓋，紅燈亮起，3秒後操作完成。
Severity: Notice
Message: Undefined index: uid
Filename: modal/messenger_auth_modal.php
Line Number: 33
Backtrace:
File: /var/www/public/application/views/modal/messenger_auth_modal.php
Line: 33
Function: _error_handler
File: /var/www/public/application/views/inc/footer_view.php
Line: 8
Function: view
File: /var/www/public/application/core/Ext_Controller.php
Line: 131
Function: view
File: /var/www/public/application/controllers/Device.php
Line: 242
Function: loadView
File: /var/www/public/index.php
Line: 315
Function: require_once