提出移动荷载作用下杆系结构内力包络图的精确计算方法。
An exact method for computation of envelopes of various internal forces of skeletal structures under moving loads is developed.
介绍了几种常用滤波窗函数的特点，给出了包络图和幅度响应图。
The characteristic of several filtering window functions giving the charts of outline and scope response is introduced.
从层间剪力包络图来看，试验值与有限元计算值都呈现近似直线分布。
For the inter story shear force, the distribution curves of calculation ones and test ones are approximately linear.
之后进行荷载组合并绘出了内力包络图，再根据荷载组合估算预应力筋的数量并布置了预应力筋。
After load combinations and force the envelope load combination, according to estimates of the number of prestressed tendons and arranged.
此程序可完成两等跨连续钢吊车梁的设计校核工作，并具有自动绘制内力包络图、输出计算书功能。
This program can complete the designing and checking of a two-span continuous steel crane beam, and it can also draw of internal force envelopes and output the calculation files.
论述了在吊车荷载作用下的简支吊车梁的弯矩包络图的分段、方程求法，最后通过实例说明包络图的绘制。
The paper discussed the sectionalization, the method for finding equation and the drawing of the envelope graph of bending moments of the simple crane girder under the action of crane loads.
超声多普勒血流信号声谱图包络是声谱参数提取的基础，能为临床心血管疾病的诊断提供重要信息。
The spectrogram envelop of Doppler ultrasound blood flow signals from which spectrogram parameters can be estimated is important to clinical diagnosis of cardiovascular diseases.
基于格雷厄姆扫描算法提出声谱图包络主波提取的新方法，并用改进的角度探测方法进行包络特征的识别。
A novel method based on the Graham scan is proposed to extract the chief wave of the spectrogram envelop, while an improved Angle detection method is applied to recognize the features.
基于格雷厄姆扫描算法提出声谱图包络主波提取的新方法，并用改进的角度探测方法进行包络特征的识别。
A novel method based on the Graham scan is proposed to extract the chief wave of the spectrogram envelop, while an improved Angle detection method is applied to recognize the features.
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