DNA polymorphism of Pythium eight species of causing tomato seedlings damping off disease in Hangzhou region

When damping off infection occurred, the activity of the protective enzyme systems in the rice seedling changed significantly.

水稻幼苗感染立枯病后，体内保护酶系活力发生显著变化。

The induced disease appears as the difference of emergence rate by artificial inoculation in glasshouse, indicate the lose of sprouting ability and pre& emergence damping off.

在温室病原诱发接种条件下，发病表现为出苗率的差异，即丧失发芽能力或出苗前的猝倒。

Damping coefficient has a large influences on the system response.

阻尼对系统响应有很大影响。

The method of small damping coefficient is discussed finally.

最后就小阻尼系数法作了对比分析。

Experiment Determination and Analysis on Damping Coefficient of Organic Glass Structure Model

有机玻璃结构模型阻尼系数的试验确定及分析

Research on analytical methods of embedment effect on stiffness and damping ratio for machine foundations

埋置动力机器基础地基刚度和阻尼比分析方法研究

Research On Identification Of Damping Coefficient Of Machine Tool's Joint-Plane

机床结合面阻尼系数识别研究

On the Oil Film Damping Technique on Machine Tools Rolling Guideways

机床滚动导轨油膜阻尼技术的研究

A Method of Identifying Damping Parameters of Machine Joint Surface

机械结合面阻尼参数识别的一种方法

Modelling of Tangential Contact Damping in Machine Joints Using Neural Network

机械结合面切向接触阻尼的神经网络结构化建模

Development of a new type of high damping machine tool spindle and it's antivibration property test

高阻尼机床主轴的研制及其减振性能试验

The result of simulation is valuable to engage in study of an Electromagnetic Damping Machine.

对于研究电磁阻尼器的特性有一定参考价值。

Simultaneous Spectrophotometric Determination of Multicomponent Systems by Damping Factor Matrix Method

利用阻尼因子矩阵法分光光度同时测定多组分体系

The dynamic response solution of a linear system with nonlinear viscous damping factor

具有非比例阻尼的线性系统的动力响应

The damping factor of bridge structure is very complicated.

桥梁结构的阻尼因素十分复杂，本文通过脉动测试利用半功率点法得到了实测的阻尼比。

An accurate method for calculating the damping factor of an isolation system

隔振系统组合阻尼的计算方法

An approach of determining optimal damping constant of damper on stay cables

确定斜拉索减振阻尼器优化参数的一种方法

The Optimal Damping Constant Study of Cable Incorporated Viscous Damper

斜拉索粘性阻尼器最佳阻尼系数的研究

Method of Determining Viscous Damping Constant of Air Track

测定气轨的粘性阻尼常量的一种方法

Curve fitting method to measure the damping constant of air

用曲线拟合方法测量空气阻尼常量