弦向

高度位置的不同对杉木和I-72杨木的弦向干缩均有显著影响，而对径向干缩则无显著影响；

There was significant difference of tangential shrinkage at different heights for Chinese Fir and I-72 poplar , while no significant difference for radial shrinkage .

径向位置的不同对杉木和I-72杨人工林木材的径、弦向干缩均有极显著影响：从树皮到髓心，木材径、弦向干缩逐渐减小，与其基本密度的变化趋势一致。

For both species the shrinkage in radial and tangential direction was decreased gradually from bark to pith , with the similar trend as basic density .

烟草根中N、K、Ca、Mg的近红外光谱分析扰流柱区域的流动既有弦向流动，同时又有径向流动；

Near - infrared Analysis of Nitrogen , Potassium , Calcium , and Magnesium in Tobacco Root The lateral flow rates near the root and the top of the blade are larger than that in the middle region .

因此，在整个干燥过程中直到含水率降到5%及更低为止，弦向收缩的百分率（YT，%）都远小于径向收缩的百分率（yr，%）。

Consequently , the percentage of tangential shrinkage ( yT , % ) proved much less than that of radial shrinkage ( yr , % ) throughout the whole drying process until the MC reduced to 5 % and lower .

结果表明：（1）随着弦向出流比增加，端壁平均Nu数逐渐下降，在所研究的Re数范围内，出流比从0变化到1，Nu数最大下降6%。

It is found that the Nusselt number is reduced by 6 percent as the ejection ratio is increased from 0 to 1 over the range of Reynolds number studied .

分析了应力水平的变化和LVL次表面加入弦向单板这些情况对参数A、B和D的影响，并对模型进行了适当的修正，使其适用范围更广。

After analyzing the effect that variation of stress level and adding tangential veneers to the subordinate surfaces have on parameters A , B and D , and appropriate modification being made to it , the model is applicable to a bigger extension .

弦向缝隙叶栅对边界层分离的控制

Boundary Layer Separation Control by Cascade with Chordwise - Split Blades

悬链线索元的协调方程式及其弦向刚度

Compatible equation and chord-direction stiffness expression of catenary cable element

计算中采用传统的弦向级数和展向分条。

A spanwise strip together with a classical chordwise series are used .

径向水分扩散系数大于弦向水分扩散系数。

Radial moisture diffusion coefficients are greater then tangential moisture diffusion coefficients .

研究了气流在尾翼弦向截面内的流动情况。

The flow in the chord section of the wing was studied .

选择O&H型式生成弦向和展向网格。

O-H topology was chosen for the grid generation in chord-wise and spanwise directions .

涡轮级叶片弦向弯曲与周向弯曲的应用研究

Two types of bowed blades in turbine stage

纤绳的弦向变形和弦向张力不成正比，具有几何非线性的特点。

The relationship between chordwise deformation and chordwise force of the cable is not linear .

应力主要集中在中叶展附近，沿弦向应力主要集中在最大厚度位置附近。

Stress focus at the middle section along blade span , and maximum thickness position chordwise .

弦向干缩率为未处理材的46.1%。

The tangential shrink ratio of the ceramic-wood composite was 46.1 % of the untreated wood .

竹材水分排除主要沿纵向，其次为弦向；

That water was mainly expelled from bamboo timber along the longitudinal direction , next along tangential direction ;

橡胶木材的纵向收缩率为0.24%，弦向收缩率为3.0%，径向收缩率为2.71%；

The longitudinal , tangential and radial shrinkag rates were 0.24 % , 3.0 % and 2.71 % respectively .

此外，还通过计算研究了悬停状态下桨叶剖面弦向质心位置对铰链力矩的影响。

In addition , the effect of blade section mass center position on hinge moment in hover were calculated .

竹材径向干缩率大于弦向干缩率；

The shrinkage rate of bamboo timber is bigger in the radial direction than that in the tangential direction ;

涡流发生器弦向位置对附面层分离控制效果影响显著，不同高度涡流发生器均有其最佳气动效率的弦向位置。

The high of vortex generators have their best chord position with an outstanding effect on controlling boundary layer separation .

计算值同实验结果相当吻合，在正大攻角时，弦向缝隙叶栅能有效地控制边界层分离。

The cascade with chordwise - split blades can effectively control the boundary layer separation at positive angles of attack .

横纹（全部）抗压强度较大，径向为92MPa，弦向为60MPa。

Radial compression ( entire ) strength perpendicular to grain is 9 2 MPa and tangential one is 6 0 MPa .

实验结果表明，螺旋波主频随着弦向位置的增大先是迅速而后平缓减小。

Experimental results show that the dominant frequency of spiral wave decreases rapidly and then slowly with the increase of the chord-wise position .

导管是对酸雨敏感的一种组织，受害材导管的弦向直径小于健康材。

Vessel is known to be sensitive to acid rain , its tangential diameter of diseased poplar decreased than that of healthy poplar .

程序除能按常规提供横流截面展向压强分布外，还能提供弦向压强分布。

The code developed can provide not only the spanwise pressure distribution as usual on cross-flow planes , but also the chordwise pressure distributions .

垂尾弦向位置对垂尾抖振起始迎角影响较小，但对最大抖振响应影响较大；

The chord-wise location of the vertical tail has little influence on the buffeting onset angle but large influence on the maximum buffeting response intensity ;

未处理木材沿弦向的燃烧炭化速度比径向快58%～105%；

For untreated wood , the carbonization rate in tangential direction was 5 8 % ~ 10 5 % higher than that in radial direction ;

马尾松木材弦向机械吸附系数不受载荷和含水率变化的影响，但随温度的升高而增大。

The tangential mechano-sorptive coefficient was not affected by the change of load or moisture content , but it increased with the increase of temperature .

结果表明：径向剖篾比弦向剖篾的竹材利用率最低可高出15%～20%。

The results showed that the utilization rate of bamboo of radical cutting strip was more 15 % - 20 % than tangential cutting strip .