tube efficiency

A High Efficiency and Multiple Application Finned Tube Machine& CDZ Finned Tube Machine

一种高效多用的翅片机&CDZ翅片机

On the basis of three-dimensional velocity field observation, the relationship between collection efficiency of straight-flow Cyclone tube with guide vanes and its principal structure parameters is presented.

用实测三维流场的方法，研究了导叶直流式旋流管的分离性能与旋流管主要结构参数的关系。

In the preliminary experiments the adiabatic expansion efficiency of orifice pulse tube with low temperature switching valve can be higher than 40%. These results show the application prospects of the machine.

对带低温切换阀的小孔气库型脉冲管的等熵膨胀效率的初步实验结果表明，其等熵效率可达40%以上，显示了一定的应用前景。

Reduced the nonlinear distortion, simultaneously also to increase the effective output, to raise the tube efficiency.

减少了非线性失真 、 同时也增加了有效输出功率 、 提高了管效率.

Instantaneous efficiency curves for both single evacuated tube and complete evacuated tubular collector are also tested.

通过实验,还分别测定了单根真空管和真空管集热器的瞬时效率曲线.

In order to improve the design efficiency of capillary tubes, capillary tube models are developed.

通过毛细管模型可极大地提高制冷装置设计中毛细管选型工作的效率.

The upper 2 expanding leaves of tube seedlings, cut into 4 mm X 4 mm and inoculated with abaxial layer downside may have the greatest regeneration efficiency. This variation was shown in the stage when the leaves were expanding.

组培苗顶端前2节位展开叶片，切成4mm×4mm左右，远轴面接触培养基时的再生效果最好。这种变化主要表现在叶片全展前后，到叶片发育后期则接近野生型。

To improve efficiency and veracity of soil sampling in testing bulk density, the cutting ring method and in situ soil tube method were combined and a multi-segment in situ soil sampler was designed.

为了提高土壤容重测定中土样采集的效率和精准性，将环刀法和原状取土管法结合，进行了分段式原状取土器的研制。

The module established the thermal efficiency model of evacuated tube solar water heaters based on the fuzzy neural network.

建立了基于模糊神经网络预测真空管太阳能热水器热效率的模型，开发了真空管太阳能热水器的热性能分析模块，分析了影响模糊神经网络预测结果的各种因素。

The major causes of low heat efficiency for the high-pressure once-through boiler include high tail smoke temperature, fouling of finned tube of convection bank of tubes and high excess air coefficient.

锅炉尾部排烟温度高、对流管束翅片积灰和过量空气系数偏大是导致高压直流锅炉热效率低的主要原因。

Studies on the Efficiency Factors of Gene Transformation via Pollen-Tube Pathway in Walnut

核桃花粉管通道法基因转化效率因子的研究