sphragis
sphragis(封瓣), 此释义来源于网络辞典。
基于8个网页-相关网页
密封瓣阀 flapper seal valve
阀杆、阀瓣密封圈 Stem,Disc,Gasket ; Body,Bonnet bolt
瓣膜封闭不全 valvular insufficiency
阀杆、阀瓣、密封圈 Bonnet bolt
三尖瓣封闭不全 tricuspid insufficiency
二尖瓣封闭不全 mitral insufficiency
自动脉瓣封闭不全 aortic insufficiency
封隔器活瓣阀 packer flapper valve
阀杆、阀瓣、密封垫 Stem Disc Gasket
·2,447,543篇论文数据，部分数据来源于NoteExpress
分瓣封头经冷成形后其变形和材料性能有什么变化，能否符合有关规定，过去没有充分数据证明。
There were no data enough to prove if the deformation and the material properties change after cold forming of sectionalized heads and if they can meet the relevant regulations.
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瓣封手的口袋。
Hand pockets with flap closures.
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