shear pin type packer
[石油英汉词典]
shear pin type packern.剪切销钉式封隔器
是什么意思,shear pin type packer的解释,shear pin type packer的翻译
[新英汉石油技术词典] shear pin type packer
shear pin type packer
[石油英汉词典]
shear pin type packer是什么意思,shear pin type packer的解释,shear pin type packer的翻译
[新英汉石油技术词典] shear pin type packer