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sonic velocity testing
相关语句
  声波检测
     Method of Sonic Velocity Testing in Rock with Structure Frofile Analysing
     岩石声波检测的结构面分析方法
短句来源
  “sonic velocity testing”译为未确定词的双语例句
     The shrinkage behavior and mechanism of poly (ethylene terephthalate) pre oriented yarns (POY) were studied with SS 1 shrinkage sonic velocity testing meter and DSC during the process of temperature increasing.
     采用 SS- 1型收缩 -声速取向联合测试仪和 DSC(差式扫描量热 )对涤纶预取向丝 (POY)纤维的升温热收缩过程进行了研究。
短句来源
  相似匹配句对
     AIRFOIL DESIGN AT SONIC VELOCITY
     M=1音速流翼型设计计算
短句来源
     On Errors of Calculating Sonic Slowness and Velocity.
     探讨声波时差的计算误差和计算速度
短句来源
     Method of Sonic Velocity Testing in Rock with Structure Frofile Analysing
     岩石声波检测的结构面分析方法
短句来源
     DISCUSSION ON TOMOGRAPHY IMAGING TECHNIQUE OF THE TESTING VELOCITY OF SONIC WAVE IN BOREHOLE
     钻孔声波测试波速层析成像技术探讨
短句来源
     and ④ velocity correction.
     ④速度校正。
短句来源
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The shrinkage behavior and mechanism of poly (ethylene terephthalate) pre oriented yarns (POY) were studied with SS 1 shrinkage sonic velocity testing meter and DSC during the process of temperature increasing. It was shown that the shrinkage of POY can be divided into 5 shrinkage stages according to the 5 different temperature transition region. There are different shrinkage mechanism during different temperature region. The shrinkage is caused by chain segments disorientation in amorphous region during...

The shrinkage behavior and mechanism of poly (ethylene terephthalate) pre oriented yarns (POY) were studied with SS 1 shrinkage sonic velocity testing meter and DSC during the process of temperature increasing. It was shown that the shrinkage of POY can be divided into 5 shrinkage stages according to the 5 different temperature transition region. There are different shrinkage mechanism during different temperature region. The shrinkage is caused by chain segments disorientation in amorphous region during lower temperature shrinkage process. There is a process of crystallization and crystalline reorganization within the scope of cooling crystalline temperature, and the shrinkage of POY is restricted in this process. The external stress influences the disorientation and crystalline behavior process during shrinkage and promotes POY to crystallize. The shrinkage of PET POY decreases with external stress incresing.

采用 SS- 1型收缩 -声速取向联合测试仪和 DSC(差式扫描量热 )对涤纶预取向丝 (POY)纤维的升温热收缩过程进行了研究。探索涤纶 POY纤维的收缩机理。试验结果表明 ,POY纤维的热收缩可以分为 5个转变温度区间 ,在不同的温度区间以不同的收缩机理为主 ,低温时是非晶区大分子链的解取向作用 ,在冷结晶温度附近 ,纤维中发生的结晶过程和晶区的结构重排作用 ,限制了纤维的收缩。外应力对纤维收缩过程中的解取向和结晶行为有—定的影响 ,外应力的增加有利于纤维冷结晶过程的进行 ,纤维的收缩率减小。

The rock mass of permanent shiplock high rock slope of the Three Gorges Project(TGP) has marked characteristics of unloading and relaxation.Kinds of methods such as geological investigation,sonic velocity test,monitor of deformation,in-situ test of elasticity modulus of rock mass,test of rock permeability,kinescope in hole,test of elasticity modulus of rock mass in hole,etc.,have been applied to studying the characteristics.The study shows that the rock mass of the slope can be divided...

The rock mass of permanent shiplock high rock slope of the Three Gorges Project(TGP) has marked characteristics of unloading and relaxation.Kinds of methods such as geological investigation,sonic velocity test,monitor of deformation,in-situ test of elasticity modulus of rock mass,test of rock permeability,kinescope in hole,test of elasticity modulus of rock mass in hole,etc.,have been applied to studying the characteristics.The study shows that the rock mass of the slope can be divided into three zones,strong-unloading zone,middling-unloading zone and slight-unloading zone.The degeneration of properties of rock mass in strong-unloading zone and middling-unloading zone is notable,while degeneration of properties of slight-unloading rock mass is not obvious.The structure and properties of the rock in unloading zone do not alert obviously;but the unloading causes the growth of the joints’ length and width.The deformation of rock mass of the slope mainly depends on the deformation of joints and elastic deformation of rock block,which is affected by excavation.The reinforcement cables have obvious effect on confining deformation of joints.

三峡工程永久船闸高边坡岩体卸荷松弛特征明显,采用地质调查、钻孔声波测试、内外部变形监测、现场变形试验、钻孔芯样力学试验、压水试验、孔壁录像、钻孔弹模测试等手段进行综合研究,结果表明,边坡岩体可划分为强、弱、微三个卸荷带,强、弱卸荷带岩体力学性质有明显弱化,微卸荷岩体力学性质无明显变化。在卸荷带内未产生新的结构面,但卸荷引起了结构面的进一步扩展和张开。岩体变形是结构面张开和岩块变形的综合反映,主要受开挖卸荷影响,锚索对于限制结构面张开作用明显。

 
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