1.
The cover for such an opening.
舱口盖覆盖这种开口的盖子
2.
stick down(the flap of)an envelope
粘住信封（的口盖）.
3.
hydrautorque-hinge hatchcover
液压扭转铰链舱口盖
4.
hydrauliccontrol device for hatch cover
舱口盖液压控制装置
5.
oil cooler access cover
通机油散热器的舱口盖
6.
balanlift type hatchcover
平衡式移滚型舱口盖
7.
double-skin pontoon hatchcover
底面铺板箱形舱口盖
8.
Remove the mouthpiece cover by gently squeezing the sides of the cover and check the mouthpiece inside and outside to see that it is clean.
轻轻挤压吸口盖的两侧，移除吸口盖。检查吸口内外是否乾净。
9.
an entrance equipped with a hatch; especially a passageway between decks of a ship.
盖有舱口盖的一个入口；多指一条船的甲板之间的出入口。
10.
After use always replace the mouthpiece cover to keep out dust and fluff.
使用后请将吸口盖盖上，以防灰尘和绒毛。
11.
Two more footrests and handgrips should be installed at the entrance of the small hatchcover.
在小舱口盖的进口处再安装两只踏步和拉手。
12.
GASTROPOD OPERCULA FROM THE PALAEOGENE XINHEKOU FORMATION OF DONGTING BASIN, HUNAN
洞庭盆地下第三系新河口组腹足类口盖化石
13.
tuck the flap of an envelope in
把信封的口盖摺进信封里.
14.
I cover the top with a piece of cardboard.
我用一张纸板把罐子的口盖上。
15.
The round flat cover over the hole on a wood-burning stove.
炉盖一种圆形的扁平盖，盖在烧木头的炉口上
16.
put rocks over a cave entrance
把岩石盖在洞的入口处
17.
big opening easy open lid production line
大开口易拉盖生产线
18.
gum down the flap of an envelope
用胶粘住信封的盖口