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falling needle
相关语句
  落针
     STUDY OF THE RELATION BETWEEN FLUID VISCOSITIES AND TEMPERATURE USING THE FALLING NEEDLE VISCOMETER
     用落针粘度计研究液体粘度与温度的关系
短句来源
     The experimental instrument of TW-A falling needle coefficient of viscosity is improved,reducing the errors in measurement and making the experiment result more accurate.
     通过对JW -A型落针式粘滞系数实验仪的改进 ,以减少其测量误差 ,使实验结果更准确。
短句来源
     THE IMPROVEMENT OF THE EXPERIMENTAL INSTRUMENT OF FALLING NEEDLE COEFFICIENT OF VISCOSITY
     落针式粘滞系数实验仪的改进
短句来源
  落针式
     The experimental instrument of TW-A falling needle coefficient of viscosity is improved,reducing the errors in measurement and making the experiment result more accurate.
     通过对JW -A型落针式粘滞系数实验仪的改进 ,以减少其测量误差 ,使实验结果更准确。
短句来源
     THE IMPROVEMENT OF THE EXPERIMENTAL INSTRUMENT OF FALLING NEEDLE COEFFICIENT OF VISCOSITY
     落针式粘滞系数实验仪的改进
短句来源
  相似匹配句对
     On Needle
     说“针”
短句来源
     THE IMPROVEMENT OF THE EXPERIMENTAL INSTRUMENT OF FALLING NEEDLE COEFFICIENT OF VISCOSITY
     落针式粘滞系数实验仪的改进
短句来源
     The Falling Girl
     坠落的女孩
短句来源
     7 needle.
     穿刺针为 14G和长 7号注射针。
短句来源
     Falling into the Earth
     坠落地球
短句来源
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  falling needle
Falling sphere data (diameter of sphere/diameter of suspended particle ≈ 10) agree well with the falling needle data over the whole range (up to 40%) of solids concentrations used in our tests.
      
Difficulties associated with the viscosity measurement of concentrated suspensions of particulate solids in a liquid solvent can effectively be overcome with the falling needle technique reported here.
      
A new type of viscometer, the "Falling Needle Viscometer" (FNV) has been developed.
      
The falling needle viscometer a new technique for viscosity measurements
      


The theoretical and cxperimental rcsearch is made into a brand-new viscometer-the intelligent type of fall needle viscometer and a discussion is held on the results and errors.

对一种新颖的粘度计──智能型落钟粘度计进行了实验和理论的研究.并对结果和误差进行了讨论。

The Pathogenetic fungi of pine nedles' brown spot is Lecanosticta acicola. Mycelial filaments of diseed tissue and fungi body in disend needle or fallen needles are initial source of infection. From May to mid-June ls the main infection Period. The source of infection is disseminated by rain drop and wind. Contro1 by chtorothalonil and thiophanate spray in initial occurrence or picking disared needles has good effect.

松针褐斑病的病原菌为Lecunostictaacicola,在病叶上或落叶上的病菌子实体和病组织中的菌丝体是初侵染源。任杂期主要在5月上旬至6月中旬。病原菌通过雨水的溅散以及风力而传播。在发病初期采用百菌清可湿性粉剂和托布津农药喷液及人工摘除病叶进行防治,均能收到一定效果。

The temperature changing falling needle viscometer(TCFNV) was developed from the normal falling needle viscometer(FNV).This new type of viscometer contains five parts: container, falling needle, Hall sensor, single board computer timer and temperature control system. The temperature can be controlled by the temperature control system and at a certain temperature; by using the Sing Boary Computer timer, we record the time at which top and bottom of falling needle pass through the Hall...

The temperature changing falling needle viscometer(TCFNV) was developed from the normal falling needle viscometer(FNV).This new type of viscometer contains five parts: container, falling needle, Hall sensor, single board computer timer and temperature control system. The temperature can be controlled by the temperature control system and at a certain temperature; by using the Sing Boary Computer timer, we record the time at which top and bottom of falling needle pass through the Hall sensor. Then the viscosity of the experimental fluid can be calculated. It is easy to operate; temperatures and corresponding viscosities can be read directly. Researches on the relation between fluid viscosities and temperature can be carried out on this apparatus. Investigation was carried out on castor oil and an after analyzing the measured data, we got an empirical formula. The viscosities measured by the TCFNV agreed with those in physics handbook within 2% error. Experimental results show that this new type of viscometer is very easy to handle and has sufficient precision.

变温式落针粘度计是在智能型落针粘度计的基础上研制出来的,用以研究液体的粘度随温度的变化关系.该仪器操作简便,可直接读出温度值及对应的粘度值.用它研究了蓖麻油粘度与温度的关系,并由实验数据拟合而得一经验公式

 
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