Superior gluteal artery, internal pudendal artery, inferior gluteal artery close to external iliac bone plate, the distance from Superior gluteal artery to the greater sciatic notch is shortest. At the lateral position, the posterior superior iliac spine, greater sciatic notch, femur greater trochanter project to constitute a isosceles triangle
⑴髋臼骨折术后并发症与骨折类型、复位情况、手术入路相关；⑵涉及坐骨大切迹的髋臼骨折易损伤臀上动脉及变异的臀下动脉，出血量大且止血困难；⑶侧卧位时髂后上棘、坐骨大切迹、大粗隆顶点三者之间连线的体表投影大体构成等腰三角形，有助于改进髋臼骨折手术入路，减少术中出血；⑷ CTA 能良好的显示髋臼骨折形态与类型、髋臼骨折块与髋臼周围动脉之间的关系及动脉的形态学改变、动脉内壁损伤情况，为髋臼骨折手术入路的选择与预后评价提供可视化的客观依据。
A new method is introduced for estimating the fatigue crack formation life of boiler steam drum by using fatigue crack formation life of double notch plate specimens under room temperature.
本文提出了用双缺口板试件在常温下的疲劳裂纹形成寿命，估算锅炉汽包疲劳裂纹形成寿命的新方法。
Crushing functions of a rotary crusher are achieved by its crushing cavity consisting of an eccentric rotary roller arid a fixed notch crushing plate.
回转式破碎机的破碎功能是通过偏心回转辊和固定凹面破碎板组成的破碎腔来实现的。
Discussion on Wear of High-pressure Vane Pump with Valve Plate Notch
高压叶片泵配流盘设计中开缺口与磨损
Thermal fatigue behaviors of superalloy GH230 was studied in the temperature ranges of700, 800, 900 and1000 ℃ to20 ℃, using V-notch plate specimens.
利用开有V形缺口的平板试样，研究了GH230合金在试验最高温度分别为700、800、900和1000℃，最低温度为20℃的热循环下的热疲劳行为。
The interior energy dissipator has mainly three types, that is notch-plate dissipator, gyrating-flow dissipator and baffle well.
内消能工主要有孔板（洞塞）式消能工、旋流式消能工、消力井等3种形式。
Analytical-generalized variational method in solution of the stress intensity factors for a double notch edge crack in orthotropic plate subjected to pin loads
求解受钉传载荷正交各向异性板双边缺口边缘裂纹应力强度因子的复变－广义变分解法
Thermal fatigue behaviors of superalloy GH230 was studied in the temperature ranges of700,800,900 and1000 ℃ to20 ℃, using V-notch plate specimens.
利用开有V形缺口的平板试样，研究了GH230合金在试验最高温度分别为700、800、900和1000℃，最低温度为20℃的热循环下的热疲劳行为。
The result of the theory analysis and test study determines the important parameters and action law of the detonating fuse, metal flat tube, notch bolt and separation plate in the separation device of the expansion tube.
2通过理论分析和试验研究，确定了膨胀管分离装置中导爆索、金属扁平管、凹口螺栓、分离板的重要参数和作用规律。
A steel plate having a tensile strength of at least about 930 MPa (135Ksi), a toughness as measured by Charpy V-notch impact test at least about 120 joules (88 ft-lb), and a microstructure comprising at least about 90 volume percent of a mixture of fine-grained lower bainite and fine-grained lath martensite, wherein at least about 2/3 of said mixture consists of fine-grained lower bainite transformed from unrecrystallized austenite having an average grain size of less than about 10 microns and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, titanium, aluminum, calcium, rare earth metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling passes (10) in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling passes (10) in a second temperature range in which austenite does not recrystallize, quenching (12) said plate to a suitable quench stop temperature (16 and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.
一种钢板，其抗拉强度至少约930MPa135ksi），在－40℃（－40°F）下，采用夏氏V型缺口冲击试验测定的韧性至少约120焦耳（88英尺－磅），并且其显微组织包含至少约90％体积的细晶粒的下贝氏体和细晶粒的板条马氏体的混合物，其中该混合物的至少约2／3由从平均粒径小于约10微米的未再结晶奥氏体转变而来的细晶粒的下贝氏体组成，而且，其中所述的钢板包含铁和特定重量百分比的添加元素：碳、硅、锰、铜、镍、铌、钛、铝、钙、稀土金属和镁，所述钢的制备过程为：将一钢板坯加热至一个适当的温度；在奥氏体可发生再结晶的第一个温度范围内，采用一个或多个热轧道次（10），将所述板坯轧制成板材；在奥氏体不发生再结晶的第二个温度范围，采用一个或多个热轧道次（10）进一步轧制所述板材；将所述板材淬火处理（12）至一个适当的淬火终止温度（16）；停止所述淬火处理并将所述板材空冷（18）至室温。
An ultra-high strength essentially boron-free steel having a tensile strength of at least about 900 MPa (130 Ksi), a toughness as measured by Charpy V-notch impact test at -40 DEG C (-40 DEG F) of at least about 120 joules (90ft-lbs), and a microstructure comprising predominantly fine-grained lower bainite, fine-grained lath martensite, or mixtures thereof, transformed from substantially unrecrystallized austenite grains and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, vanadium, molybdenum, chromium, titanium, aluminum, calcium, rare earth metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling (10) passes in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling (10) passes in a second temperature range below said first temperature range and above the temperature at which austenite begins to transform to ferrite during cooling; quenching (12) said plate to a suitable quench stop temperature (16 and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.
一种超高强度的、基本无硼的钢，其抗拉强度至少约900MPa130Ksi），在－40℃（－40°F）下，采用夏氏V型缺口冲击试验测定的韧性至少约120焦耳（90英尺－磅），而且，其显微组织主要包括由基本上未再结晶的奥氏体晶粒转变而成的细晶粒的下贝氏体、细晶粒的板条马氏体或者它们的混合物，而且，所述钢包含铁和特定重量百分比的添加元素：碳、硅、锰、铜、镍、铌、钒、钼、铬、钛、铝、钙、稀土金属和镁，所述钢的制备过程为：将一钢板坯加热至一个适当的温度；在奥氏体发生再结晶的第一个温度范围内，采用一个或多个热轧（10）道次，将所述板坯轧制成板材；在第二个温度范围，采用一个或多个热轧（10）道次进一步轧制所述板材，所述第二个温度范围低于所述第一个温度范围，但高于冷却期间奥氏体开始转变为铁素体的温度；将所述板材淬火处理（12）至一个适当的淬火终止温度（16）；停止所述淬火处理并将所述板材空冷（18）至室温。