The loose lid allows air to enter the jar, which is not a hermetic seal.
松动的盖子会让空气进入罐子,这不是一个密封的封口。
来源:金山词霸Ultrasound . PET-synchronous links . Blister-sealing machine, and other packaging machinery.
PET同步熔断机. 吸塑封口机等各种包装机械.
来源:互联网摘选Automatic Compresses Seal Machine is also called VacuumCompress Packing Machine.
真空压缩包装机,又名封口机.
来源:互联网摘选Photocell Unit & camera for accurate sealing of pouches at Eye-registration mark.
光电装置和摄像机使机器能精确捕捉封口标识.
来源:互联网摘选Back sealing or three sides sealing. Pretty package form, precise measuring.
该机采用背部封口或三边封口, 包装形式美观 、 计量精度高.
来源:互联网Lightly press down on the omelet with the spatula to seal it together.
轻轻地用抹刀按压鸡蛋卷,使封口更加严密.
来源:互联网摘选简答网 · 双语新闻

简答网 · 双语新闻

简答网 · 双语新闻

简答网 · 高考英语

简答网 · 初中英语作文

简答网 · 四六级英语