oil-sealed jar safety joint
油封式震击器安全接头
shear pin tubing safety joint
剪切销式油管安全接头
Front Oil Seal Installer 6635
前油封安装器6635
shear pin safety joint
剪切销钉式安全接头
Apply a light film of engine oil on the vibration damper hub contact surface of the seal.
在减震器毂油封接触表面上涂一层引擎机油薄膜。
DSS tubing joint
双密封专用油管接头
Signcryption Key Encapsulation in Insider Security Mode
内部攻击者安全模式下的签密密钥封装
EX(d). PACKING GLAND FOR CONNECTING PIPE
接管式防爆密封接头
WATER-PROOF PACKING GLAND FOR CONNECTING PIPE
接管式防水密封接头
Safety Inspection and Evaluation of Dilute Oil-sealed M.A.N.Gasholder
稀油密封干式燃气储气罐的安全检测与评估
safe sensor with seal for wire end
接线端具有封印保护装置的安全传感器
pressure balanced drilling bumpersub
压力平衡式钻井震击器
hook wall pumping packer
抽油井悬挂式封隔器
The optimizing analysis of the parameters of joint structure between the spherical head and the tube of the coal-to-liquids heavy duty hydrogenation refined pre-reactor
煤制油加氢预精制反应器封头与简体连接区参数优化分析
Study on Contact of the Dynamic Response of Collision Contactor;
迎击式接触器触头动态响应模型的研究
Study on the Dynamic Response of Contacts of Collision Type Contactors Based on PRO/E;
基于PRO/E的迎击式接触器触头动态响应的研究
Contact Dynamic Simulation for Counterpunch Type AC Contactor Based on ADAMS
基于ADAMS的迎击式交流接触器触头动态仿真
Data Security Processor Based on Contact Type IC Card;
基于接触式IC卡的USB数据安全处理器