1.
Welding Process Test and Application of Bottom Head and Heater Sleeve in Pressurizer

稳压器下封头与加热套管的焊接工艺试验及应用
2.
The device is placed top down on the decapsulation head.

需开封的器件正面朝下放在腐蚀头上。
3.
ellipsoidal head

椭球体的封头, 椭圆封头
4.
A strip of torn envelope peeped from under the dimpled pillow.

凹陷的枕头底下露出一小截撕破了的信封。
5.
Fingering still the letter in his pocket he drew the pin out of it.

他依然用指头在兜里摆弄着那封信,并且把饰针拔下。
6.
Design and Research of Automatic Feeding and Blanking Devices for Large Heads Punching Machine;
大型封头冲压设备自动上下料辅机的设计与研究
7.
Research on Subsea Wellhead System with Analysis and Design of Pack off Assembly

水下井口头系统研究及其密封总成结构设计分析
8.
DESIGN OF ELLIPTICAL HEAD-NOZZLE STRUCTURE UNDER EXTERNAL LOADING

复杂载荷作用下的椭圆封头-接管连接加强结构设计
9.
Optimal design of the connection structure of ellipsoidal vessel head with connecting pipe under the action of complex loads
复杂载荷作用下椭圆封头-接管连接结构的最优化设计
10.
A landed estate granted in feudal tenure.

封地封建财产制度下的封赏地宅
11.
DSS tubing joint

双密封专用油管接头
12.
unstayed flat heads and covers

无支撑平封头和盖板
13.
oil-sealed jar safety joint

油封式震击器安全接头
14.
The probe unit is hermetically sealed.

探头装置是密封的。
15.
FLEXIBLE CONDUIT WITH EX(d).PACKING GLAND

防爆密封接头挠性管
16.
EX(d).ARMORED-CABLE PACKING GLAND

防爆铠装电缆密封接头
17.
WATER-PROOF ARMORED-CABLE PACKING GLAND

防水铠装电缆密封接头
18.
EX(d). PACKING GLAND FOR CONNECTING PIPE

接管式防爆密封接头