sealed letter
英 [siːld ˈletə(r)]
美 [siːld ˈletər]
网络 封口信件
双语例句
- It was late when he sealed the letter and got up.
当他封好了信，站起来的时候，已经很晚了。 - But he did not answer, sealed the letter he had just written, and gave it to Joseph to post.
但是他什么也不说，封上他刚写好的那封信，交给约瑟夫去寄掉。 - He stamped the letter, sealed it off and then, put it into a letter box.
他在信上贴好邮票，封好信口，然后把信投入信箱。 - The use of valve conditions, stem material, packing performance and size, affect the pre-compression filler filler sealed letter.
阀门的使用条件、阀杆材料、填料性能和尺寸，填料预紧力都影响填料函的密封。