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1.Simple and Easy Automatic Control of The Water Level of Steam Pocket in Medium- and Low-pressure Boilers
中低压锅炉汽包水位简易自控收藏指正
2.In such cases it would be simple for the shop assistant to bag the item without ringing it through the till, and to pocket the cash.
在这种情况下，店员不用打开钱柜，就可以轻易地替顾客把货物包好，然后把现金揣进自己腰包。收藏指正
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