1.
retrievable hydraulic-set casing Packer
可收回的液压坐封套管封隔器
2.
An envelope or wrapper for mail.
封套，信封为邮寄而制的信封或封套
3.
wireline packer setting
电缆操作封隔器坐封
4.
multistring hydraulic-set packer
多管水力坐封封隔器
5.
packer setting control line
封隔器坐封液压控制管
6.
hydro-set permanent packer
永久式水力坐封封隔器
7.
water-seal latrine unit
(成套)水封式厕所
8.
wireline pressure setting assembly
电缆工具压力坐封装置
9.
hydraulic-set dual hanger
水力坐封双管悬挂器
10.
the closed boats paddled from a sitting position with a double-blade paddle.
即封闭的、坐式双桨比赛，
11.
BUSHINGS SEATED IN BOOTS
坐落在防尘套中的轴瓦
12.
phonograph records were sold in cardboard jackets.
唱片装在封套里出售。
13.
encapsulated fuel unit
加密封套的燃料元件
14.
BALL JOINT SEAL BOOT
球形接头密封防尘套
15.
tamper evident valuable property envelope
防干扰贵重财物封套
16.
fasten(the cover,flap,etc of sth)with glue,paste,etc
（用胶水、浆糊等）粘住（封套、信封口等）
17.
He opened the cover in which the message was enclosed.
他把密封那份电报的封套拆开。
18.
book [ dust ] jacket
(套在书藉外面可以取下的)外封套