1) wellhead housing
井口罩
2) well-head housing
井口装置外罩
3) Respirator
[英]['respəreɪtə(r)] [美]['rɛspə'retɚ]
口罩
1.
Study on KZNJ-1 Respirator Efficiency Tester;
KZNJ-1型高效口罩效率检测装置的研制
2.
Abiological protective respirator with equal protection level of the half face mask;
一种达到面具防护水平的生物防护口罩
3.
A study on filtrating materials from super micro-fine fibre with electrets and protective respirators for SARS;
驻极超微细纤维高效滤材SARS防护口罩的研究
4) mask
[英][mɑ:sk] [美][mæsk]
口罩
1.
The structure and performances of the plane-type charge-modified virus-preventive mask;
平面型荷电防病毒口罩的结构及性能评价
2.
Advances in development and clinical application of the medical masks made of non-woven material;
非织造材料医用口罩的研制及临床应用进展
5) well guard
井防护罩
6) medical mask
医用口罩
1.
The testing principle,techno-characteristics and structure design of the flame retardant tester for medical mask was introduced.
文章介绍了医用口罩阻燃性能测试仪的测试原理、技术特征及结构设计。
补充资料：封口装置——滚纹装置
封口装置——滚纹装置     | ||
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条