| ประโยคภาษาจีน : 中文句子 | 
|---|
|  dāng当  fá mén阀门  zhěng整  zhāng zhǐ hòu张纸后  yīng jiāng应将  shǒu lún手轮  dào zhuǎn倒转  shǎo xǔ少许  shǐ使  luó wén螺纹  zhī jiān之间  yán jǐn严紧  yǐ miǎn以免  sōng dòng松动  huǐ shāng毁伤 | 
| When the valve is fully open, the hand wheel should reverse a little, so tight between threads, so as not to loose damage. |