回旋是导致PD C钻头早期失效的主要原因，介绍了一种基于挠性钻头的构想设计的抗回旋pdc钻头，阐述了其结构和抗回旋原理。
A kind of anti-whirl PDC bit designed based on the idea of flexible bit is introduced in this paper and the structure and working principle of it is expatiated.
研究了最近提出的非线性自抗扰控制器(adrc)在大挠性多体卫星姿态控制中的应用问题。
The recently developed nonlinear active disturbance rejection controller (ADRC) is applied to attitude control of large flexible multi-body satellite with reaction wheels.
研究了最近提出的非线性自抗扰控制器在大挠性多体卫星姿态控制中的应用问题。
The recently developed nonlinear Active Disturbance Rejection Controller (ADRC) was applied to the attitude control of large flexible multi-body satellite with reaction wheels.
沥青改性：在沥青中加入3%—15%的SBS可改善沥青的低温屈挠性和高温抗流动性能。
Bitumen modification: The low temperature flexing and anti-flowing property at high temperature of bitumen can be improved by adding 3% to 15% (wt %) SBS.
本发明的课题在于提供一种耐折性、蚀刻特性、与抗蚀剂的粘合性优异、没有表面缺陷的两层挠性基板。
The invention provides a two-layer flexible substrate which is free from surface defects, while being excellent in flexural strength, etching characteristics and adhesion to a resist.
它们显示出广泛的硬度、刚性、挠性、拉伸强度、抗污性、耐划伤性、耐冲击性、耐溶剂性等等。
They exhibit wide ranges of hardness, toughness, flexibility, tensile strength, stain resistance, scratch resistance, impact resistance, solvent resistance, etc.
结果表明，防老剂FHD 6 0在热氧老化、天候老化及抗屈挠性方面均有良好效能，是取代防老剂A的理想产品。
The results showed that FHD-60 gave the compounds better thermal aging, wea ther aging and flexing properties, and was an ideal product for replacing antideg radant A.
并对其进行了性能检测，证明其中的挠性接头具有足够大的抗拉、压、扭能力。
Its performance has been tested to the extent that the flexible sub can provide enough resistance to tension, compression and torsion.
本发明涉及一种挠性板总成轴向疲劳的试验方法，能够有效检测挠性板总成抗轴向疲劳能力。
The invention relates to a method for testing the axial fatigue of a flexible plate assembly, which can effectively test the axial fatigue resistance capability of the flexible plate assembly.
本发明涉及一种挠性板总成轴向疲劳的试验方法，能够有效检测挠性板总成抗轴向疲劳能力。
The invention relates to a method for testing the axial fatigue of a flexible plate assembly, which can effectively test the axial fatigue resistance capability of the flexible plate assembly.
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