通过直管噪声与带消声器的尾管声压级的对比，发现在低频段有一峰值。
We make a comparison in tailpipe noise between straight pipe and muffler, it is seen that there is a sharp peak in low frequent.
在直管脉冲爆震发动机上安装不同类型的喷管，利用推力传感器测量了不同频率下发动机的瞬态推力和平均推力。
Test results from an experimental investigation of the effect of nozzle on the thrust of a straight tube pulse detonation engine are presented.
皮碗清管器系列；直板清管器系列；刮蜡清管器系列；泡沫清管器系列；屈曲探测器系列等五大系列几十种产品。
Five series of products includes more than ten varieties, including cup pig series, straight plate pig series, paraffin scraper series, foam pig series, flexuosity detector series, etc.
实验结果表明，螺旋管管束的流体诱发振动响应与直管相比存在一定的差别； 200MW高温气冷堆蒸汽发生器的设计避免了管束的大振幅振动。
The experimental results reveal the difference between helical tubes and straight tubes on flow induced vibration, and the design for 200MW HTR steam generator avoids large amplitude vibration.
美国飞兆半导体公司最近推出两款新型紧凑型荧光灯(CFL)和直管型荧光灯(TL)电子镇流器控制器FAN7710与FAN7711。
Currently, The Company of America Feizhao semiconductor has outputted two new FAN7710 and FAN7711 electronic ballast for compact fluorescence lighting (CFL) and tube lighting (tl).
研究了钠冷快堆电厂直管式直流蒸汽发生器可移动边界的模块化模型。
This paper presents the modular modeling of movable boundary in straight tube Once-Though steam generator (OTSG) for sodium cooled fast reactor power plants.
在普通直管氙灯泵浦的染料激光器中，实验上证实了这点。
This has been proved experimentally in general linear xenon flashlamp pumped dye laser.
该分布器与原来的多孔直管式分布器比较，具有壁流量小，操作弹性大的优点，而且此分布器结构简单，安装方便。
Compared with perforated pipe distributor, perforated weir-riser distributor has smaller wall flow, bigger operation elasticity and simpler structure, it is easy to install.
探讨了直埋蒸汽管道的保温结构、保温材料、外保护管、固定支座、补偿器、疏水装置等技术。
The technique of directly buried steam pipeline such as insulation construction, insulating material, outside protective pipe, fixing support, compensator, and steam trap connections is discussed.
本文根据消声器在实际工作过程中声管内温度发生变化的特点，推导了考虑气流和线性温度梯度情况下刚性直管的声场传递矩阵。
The transmission matrix of rigid straight pipe with mean flow and linear temperature gradient is established according to the actual case of silencer.
为探索混合式直丝弓矫治器治疗前牙反牙合的有效性，采用磨牙颊面管和双尖牙托槽固定在牙合垫的颊面，使牙合垫和直丝弓矫治器合二为一而成混合式直丝弓矫治器。
In order to explore the effect of the compound straight wire appliance on the correction of anterior cross-bite, molar buccal tubes and bicuspid brackets were fixed in the buccal side of occlusal pad.
通过直管障碍的仿真实验，得出了牵引器在直管中越障时各组件的工作状态、直管越障阻力与设计牵引力的比例关系。
By simulation of the tractor in straight oil pipe with obstacle, discussed the working situation of components and the relation between drag force and the force need to cross obstacle.
对不同直管长度以及直管底部有少量抽气时不同抽气率对旋风分离器的分离效率的影响进行了实验研究。
The separation efficiencies of a cyclone with different lengths of vertical tube and bottom air extractions were studied by experiments.
x头管-标准大柄接受器，带直锥形设计增加灵活性。适合SL 2525和SL 2547。
Leadpipe - features standard large shank receiver with a straight taper designed for great flexibility. For SL2525 and SL2547.
采用新型不锈钢波纹管代替壳管式换热器中的直管，对压缩机中间冷却器进行了改造，并进行了实际运行测试和比较分析。
The modification of a compressor intercooler was conducted by replacing the straight tubes of a shell tube heat exchanger with a new type of stainless steel corrugated tubes.
介绍了一种双面换热的套管式直流蒸汽发生器，其元件由直管外管和螺旋内管组成。
The once-through steam generator with double-side heat transfer component was presented in this paper. And the component is composed of straight tube outside and helix tube inside.
方法对87例低位直肠癌患者用管状消化道吻合器行带结肠盲管之直结肠端侧吻合。
Methods 87 cases of low rectal cancer treated surgically with the GF-1 straight-tube stapling device were observed.
方法对87例低位直肠癌患者用管状消化道吻合器行带结肠盲管之直结肠端侧吻合。
Methods 87 cases of low rectal cancer treated surgically with the GF-1 straight-tube stapling device were observed.
应用推荐