The harm of percussive ground pressure, produced reason, conditions and protective measures are introduced.

Abstract: The harm of percussive ground pressure, produced reason, conditions and protective measures are introduced.

文摘: 介绍了冲击地压的危害程度, 发生的原因 、 条件及采取的防治措施.

Pneumatic DTH ( Down-The-Hole ) hammer is one of main pneumatic percussive-rotary drilling equipments.

风动冲击器是气动冲击回转钻进的主要设备之一.

His music is full of emotions backed with state-of-the-art technique, often treated with percussive arrangement.

凭借超群的技艺和时常伴以打击元素的安排,他的音乐充满动感.

Objective To evaluate the value of coaxial cutting needle in percutaneous puncture biopsy guided by CT.

目的评价同轴切割针在螺旋CT引导下经皮穿刺活检的应用价值.

Conclusions Percutaneous wire cerclage is an effective assistant method in treatment of spiral tibial fracture.

结论经皮钢丝环扎术是一种治疗胫骨螺旋形骨折的辅助内固定方法.

To introduce fundamental theory of microdialysis and its application for percutaneous absorption.

介绍微渗析技术的基本理论及在经皮吸收研究中的应用.

Methods 78 samples with coronary disease was cured by the percutaneous coronary intervention.

方法78例冠心病患者经皮桡动脉途径介入治疗.

Objective To investigate the feasibility of asiaticoside in preventing restenosis after percutaneous coronary intervention ( PCI ).

目的探讨积雪草甙防治经皮冠状动脉介入治疗 ( PCI ) 术后再狭窄的可行性.

Objective To investigate the change tendency of amplitude of T-wave after percutaneous coronary intervention ( PCI ).

目的观察经皮腔内冠状动脉介入治疗 ( PCI ) 后 T 波振幅的变化规律.

Stent thrombosis ( ST ) after percutaneous coronary intervention has been the focus of intense interest itsand mortality.

经皮冠状动脉介入治疗后的支架血栓形成 ( ST ) 一直以来都是人们关注的焦点.

His name is Percy Buttons.

他叫珀西.巴顿斯.

Then, as Bill is 5 and Charlie 3 , Percy is born.

然后当比尔5岁查理3岁的时候帕西出世了.

Percy Weasley: Hello, Sir Nicholas. Have a nice summer?

珀西·韦斯莱: 哈罗, 尼古拉斯爵士. 暑假过得还愉快 吗 ?

Percy Weasley : Oh, that's Professor snape, head of Slytherin house.

珀西·斯莱: 喔, 那是斯内普教授.斯莱特林学院的院长.

Percy in particular was working to get the Transylvanians on board ( GF 23 ).

珀西忙于说服特兰西瓦尼亚人同意签字 ( 火焰杯,第23章 ).

Strange natures made a brotherhood of ill ( Percy Bysshe Shelley )

喜怒无常的性情导致了手足情谊恶劣(珀西比希雪莱 )

Percy Weasley : Gryffindors, follow me, please. Keep up . Thank you.

珀西·韦斯莱: 格兰分多学生请跟我走. 快跟上啊, 谢谢.

He was damned to perdition.

他万劫不复.

The end result is the perdition of the surname Gongsun and the isolation of Gaogouli.

其结果是公孙氏的灭亡和高句丽的孤立.

It was their remarkable spirit that had prevented them from perdition.

正是他们这种伟大的精神使他们得以生存而不至于灭亡.