1.
straddle-packer test
跨式双封隔器地层测试
2.
straddle packer
跨式双封隔器中的一个封隔器
3.
radial double mechanical seal
径向双端面机械密封
4.
axial double mechanical seal
轴向双端面机械密封
5.
calculation for bolt load of double-cone seal
双锥密封的螺栓力计算
6.
hydraulic-set dual hanger
水力坐封双管悬挂器
7.
DSS tubing joint
双密封专用油管接头
8.
organic-seal double-glazing unit
有机物封填双层玻璃窗
9.
ceramic dual in-line package
陶瓷双列直插式封装
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.
The Struggles Between the Great Britain and France over the Blockade and Counter-blockade from 1806 to 1812;
试析1806～1812年法英双方的封锁与反封锁的斗争
12.
Fig4. Self-seal means adhesive tapes attached, so not the mails but you should accomplish the sealing job instead of open-wide delivery.
图四：自封信封意思是信封口上面带着双面胶，不是信封自己会把自己封上，不要敞着就寄出去了。
13.
The twins are like as two peas.
那封双胞胎长得一模一样。
14.
Biaxially oriented polypropylene film for heat-seal
GB/T12026-1989热封型双轴拉伸聚丙烯薄膜
15.
Kay took the letter out of her purse.
恺双手从钱包里拿出了那封信。
16.
double-grip large bore single string packer
双卡瓦大内孔单管封隔器
17.
A closed automobile, usually with two doors.
双门轿车封闭式汽车，通常有两个门
18.
double grip retrievable casing packer
双卡瓦可回收式套管封隔器