Research on Two-Channels Pulse to Pulse Frequency Shifting Outdoor RCS Measurement Radar

Doppler frequency shifting and curve fitting differential methods for measuring velocity are analyzed and compared.

对测量速度的两种方法，多普勒频移法和曲线拟合微分法作了分析和比较；

Simplified Design of High Range Resolution Pulse to Pulse Frequency Shifting Outdoor RCS Measurement Device

HRR脉间变频外场RCS测试设备的简化设计

Design and Realization of Two-Channel Pulse to Pulse Frequency Shifting RCS Testing System

双通道脉间变频格式RCS测试系统

Study of the Suppression of Frequency Shifting by Sliding Filter

滑频滤波器对频率移动抑制的研究

Object's velocity effect on pulse to pulse frequency shifting RCS measurement

目标速度对脉间变频格式RCS测试的影响

PSpice Simulation Analysis of Frequency Shifting in Sound Reinforcement System

扩声系统移频增音的PSpice仿真分析

It features high measuring accuracy and powerful data processing functions, together with computer controlled gear shifting and variable speed pump starting tests, which extends the application range of the test bench.

实现了检测试验台的自动化操作，测试精度高，数据处理功能强，还具备了计算机控制换挡和变速泵启动试验的功能，扩大了试验台的试验范围。

Improvement of Automatic Shifting Control of Pump Group for Ship

船用泵组自动切换原理图的改进

The relation of wind velocity and total amount of sand transport also changes with vegetation coverage: On shifting sandy land, wind velocity has a cubic function to the sand transport;

随着植被盖度的变化，风速与输沙率的关系也发生变化：流动沙地上风速与输沙率呈三次函数关系；

Some meteorologists suspect unseasonal snow storms off the east coast of America in2010 were partly caused by Arctic warming shifting wind patterns.

一些气象专家怀疑2010年美国东海岸的那场非季节性暴风雪，北极变暖造成的气流模式改变难辞其咎。

Chapter 2, the influence of Japanese literature, shifting wind of Japanese literary world and the Left Wing Literature ( the proletarian literature) that affected them.

第二章，论述日本文学、日本的文坛风向、左翼文学（无产阶级文学）对创造社作家的影响。

The shifting drive bearing is a new special type bearing with supporting function as well as speed change function. The design of mechanism is novel and well knit, with high efficiency and load bearing capacity.

变速传动轴承是一种既具有支承功能又具有变速功能的新型特种轴承，其机构设计新颖紧凑，效率高，承载能力强。

This method is much simpler than conventionally used enveloping method, and gives a basis for processing the tooth profile of the internal gear of the shifting drive bearing.

这种方法比传统的包络法简便，概念清楚，对变速传动轴承内齿圈的廓形加工，具有重要的指导意义。

The Tooth Profile Equation of the Internal of Shifting Drive Bearing

变速传动轴承内齿圈齿廓方程的分析

Research and Analysis on the Drive Principle of the Shifting Drive Bearing

变速传动轴承传动原理分析与研究

The utility model relates to a self-aligning shifting bearing for bridge construction by multipoint push, which is composed of a self-aligning front bearing and a self-aligning rear bearing.

一种用于桥梁多点顶推施工的自动调位活动支座，它由能自动调位的前支座及后支座构成。

A horizontal jack is supported on the shifting bearing and is matched with the shifting bearing.

水平千斤顶支承在活动支座上并配套使用。

A shifting fork controls a cylinder, a geared sleeve is connected with a dual gear, which can generate a high or low speed, and the gearbox can have two types of outputs.

汽缸通过拨叉控制，齿套分别与双联齿轮联接完成高速挡和低速挡两种输出形式。

It is pointed out that JWF9562 transfer system in roving-spinning unit is controlled by PLC, the shifting fork mechanism is simple, running is flexible and stable, transport circuit is exact.

JWF9562型粗细联输送系统采用PLC控制，拨叉机构结构简单，运行灵活，输送线路准确、设备运行稳定。

Analyzed forming process of the reverse-gear shifting fork used in automobile, designed a progressive die, introduced die structure, hoped it has a certain reference to the similar parts die design.

分析了汽车零件倒档拨叉零件成形工艺，设计出了一幅级进模，并介绍了该模具结构，希望对类似零件的模具设计有一定的参考作用。