aerodynamics noise造句

• Among them, the aerodynamic noise constitutes one of the major noise sources
  其中空气动力噪声为主要噪声源。
• Industrial-process control valves-part 8-3 : noise considerations; control valve aerodynamic noise prediction method
  工业过程控制阀.第8-3部分:噪声的考虑.控制阀的气动噪声预测法
• Industrial-process control valves-part 8-3 : noise considerations-control valves aerodynamic noise prediction method
  工业过程调节阀.第8部分:噪声考虑因素.第3节:调节阀气动噪声预测法
• Industrial-process control valves-part 8-3 : noise considerations-control valves aerodynamic noise prediction method
  工业过程控制阀第8-3部分：噪声的考虑空气动力流流经控制阀产生的躁声预测方法
• aerodynamic noises radiated directly to the atmosphere include the air inlet noise, the exhaust noise and the cooling fan noise
  直接向大气辐射的空气动力噪声包括：进气噪声、排气噪声、冷却风扇噪声。
• Industrial-process control valves-noise considerations-control valve aerodynamic noise prediction method-control valve aerodynamic noise prediction method
  工业流程控制阀.噪声.控制阀气动噪声预测法
• Industrial-process control valves-noise considerations-control valve aerodynamic noise prediction method-control valve aerodynamic noise prediction method
  工业流程控制阀.噪声.控制阀气动噪声预测法
• Industrial-process control valves-part 8-3 : noise considerations; control valve aerodynamic noise prediction method iec 60534-8-3 : 2000; german version en 60534-8-3 : 2000
  工业过程控制阀.第8-3部分:噪声.控制阀气动噪声预测
• As one source of environmental pollution, diesel noise comprises multiple sound sources, which are mainly the aerodynamic noise and the surface radiation noise
  柴油机组噪声是一种环境污染源。它由多种声源构成的，主要为空气动力噪声和表面辐射噪声。
• The major noise resources of high-speed railway vehicles ( v 200km / h ) are wheel-rail rolling noise, structure noise, aerodynamic noise and collector system noise
  高速铁道车辆(时速200kmh)的噪声源主要是：轮轨噪声、构造物噪声、集电系噪声和空气动力性噪声。
• The aerodynamic noise is a product of the unstable gaseous process . in one word, it comes from the disturbance of gases and the interaction between gas and objects
  1空气动力噪声空气动力噪声是由于气体的非稳定过程，即由气体的扰动以及气体与物体的相互作用而产生的。
• The dgeu noise is made up of multiple sound sources . in light of the noise radiation mode, it can be classified into the aerodynamic noise and the surface radiation noise
  柴油机噪声是一个由多种声源构成的复杂声源，按照噪声辐射方式，柴油机噪声可以分为空气动力噪声和表面辐射噪声。
• The air inlet noise is one of the major aerodynamic noises of the diesel generator as a result of the pressure fluctuation caused by the periodic opening and closing of the inlet valve
  进气噪声是柴油机的主要空气动力噪声之一，它是由进气门的周期性开启与闭合而产生的压力起伏变化而形成的。
• A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load . the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan; a new computer-aided 3d blading is used to optimize the blade; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production . this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
  本文通过对一种新型高性能矿用局部通风机的设计、制造及试验全过程的综述，展现了新的先进设计体系在民用通风机上的成功运用，其研制特点是：(1)在叶片气动设计中为了降低叶根及叶尖区二次流损失，采用可控涡扭向规律设计，样机实测的高性能验证了这种方法的可行性和高效性；(2)在设计方法中采用较精确的数值反验算，获取最优设计方案，大大提高设计的准确性和成功率，并缩短了设计试制周期；(3)在设计过程中发展了计算机辅助三维叶片造型新方法，可以根据设计需要简便快捷地对叶片进行“前倾”、“倾掠”或“弯掠”造型，这些造型对减小各种二次流损失、扩大稳定工况范围和控制叶轮机气动噪声源起到了非常好的作用。
• Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load . the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan; a new computer-aided 3d blading is used to optimize the blade; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production . this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
  文摘:本文通过对一种新型高性能矿用局部通风机的设计、制造及试验全过程的综述，展现了新的先进设计体系在民用通风机上的成功运用，其研制特点是：(1)在叶片气动设计中为了降低叶根及叶尖区二次流损失，采用可控涡扭向规律设计，样机实测的高性能验证了这种方法的可行性和高效性；(2)在设计方法中采用较精确的数值反验算，获取最优设计方案，大大提高设计的准确性和成功率，并缩短了设计试制周期；(3)在设计过程中发展了计算机辅助三维叶片造型新方法，可以根据设计需要简便快捷地对叶片进行“前倾”、“倾掠”或“弯掠”造型，这些造型对减小各种二次流损失、扩大稳定工况范围和控制叶轮机气动噪声源起到了非常好的作用。