1.
Maintenance simplified by easily replaceable piston seal and steel reinforced renewable rubber disc.
更换活塞密封环和钢胶复合密封板简单方便。
2.
Finite Element Analysis of Non-Standard Seal Plates Based on ANSYS
基于ANSYS对非标准封板的有限元分析
3.
The hard cover of a book.
封皮纸板用作书封面的硬纸板
4.
board up a broken window
用木板封住已坏的窗户
5.
semi-sealed porcelain basic plate potentiator
半密封瓷基板电位器
6.
a book bound in cloth boards
用布面纸板作封面的书.
7.
unstayed flat heads and covers
无支撑平封头和盖板
8.
bellows sealed gate valve
波纹管密封的闸板阀
9.
cover ,file, of paper or paperboard
纸或纸板制档案夹封面
10.
A stiff, heavy paperboard used primarily for book covers.
书皮纸板一种硬而重的纸板，主要用作书籍封面
11.
We boarded up the hole in the wall.
我们用木板把墙上的洞封起来了。
12.
a book with cardboard or cloth or leather covers.
用纸板、布或皮革作封面的书。
13.
a cardboard used by bookbinders to make covers for books.
装订工用来做书的封面的纸板。
14.
Bolted cover plate to protect seal and cylinder from the ingress of debris.
上盖板可防止杂物进入缸筒损坏密封。
15.
Thomas scowled as he read the letter.
托马斯读这封信时，板着脸。
16.
My boss asked me to post some letters for him.
我的老板让我给他邮几封信。
17.
"You might post some letters for me," said my boss.
我的老板说：“你帮我邮几封信。"
18.
Class 150: Corrugated graphite-filled steel gasket.
150磅级：石墨填充波纹钢板密封垫。