Compared different cutting time and different cutting frequency, the productivity of hairy vetch has great difference.
通过对毛苕子进行不同刈割时间与次数对比，发现其生产能力有很大差别。
The total yields and composition of mixed pasture under different cutting frequency, nitrogen fertilizer and seeding rates were determined.
研究了刈割次数、施氮量和混播比例对扁穗牛鞭草和白三叶混播草地产量和群落组成的影响。
The results indicated that Cutting frequency was significantly negatively correlated with the soluble sugar content of the root and winter survival rate.
进行不同刈割次数处理，越冬期间取样测定其根系中可溶性糖含量及越冬率。
By cutting the frequency of flights on many routes, airlines have reduced the number of empty seats.
依靠减少很多航线的出航次数，航空公司成功减少了空位的数量。
Through collecting vibration signal and analyzing it in the frequency domain in the condition of changing parameter cutting, a single self power spectrum is hard to detect tool breakage effectively.
在变切削参数的加工工况下，通过对振动信号的采集和频域处理，发现采用单一的自功率谱方法难以有效检测出刀片破损。
Introduced a kind of new method by means of frequency track method to measure cutting power of woodworking machines.
介绍了一种用频率跟踪法测量木工机床切削功率的新方法。
This system indicates that the resonance frequency of servo drive in CNC heavy cutting is equal to the lower one of mechanism and speed loop resonance frequency.
通过对五阶系统的分析表明数控强力切削伺服进给系统的谐振频率取决于机械谐振频率和速度环谐振频率中较低的一个。
Testing and analyzing the noise source of idle run and cutting, noise frequency characters and all kinds of methods for noise reduction for the surface planer were carried out.
试验和分析木工平刨床空转和切削时的噪声源、噪声频率特性和各种降噪方法。
It introduces the structure and principle of the ultrasonic vibration unit, analyzes how to choose the work frequency, and proves that it is valid and feasible by cow ovum cutting experiment.
对此系统的超声振动单元结构及原理进行了分析，阐明了应用中的关键技术点——频率选择，并通过实验验证了超声振动对于减小细胞在切剖中的变形和损伤是非常有效的。
Mixing paddle and cutting knife adopt frequency control, which can control the size of particles.
搅拌桨与切割刀均采用变频调速，易于控制颗粒大小。
The tension of the molybdenum wire produces a direct effect on the range and the frequency of its vibration, thus affecting the quality of the wire cutting.
钼丝的张力直接影响着钼丝的抖动幅度和频度，从而影响线切割加工的质量。
This led to corner cutting and - with surprising frequency - falsification of data.
其结果导致投机取巧了，伪造数据资料，其频繁程度使人吃惊。
Study on parameters of the diamond cutting major raise the frequency of KDP crystal to change efficiency.
研究金刚石车削参数主要是为了提高KDP晶体的频率转化效率。
Signals of cutting force and vibration are measured with multi-sensor and features in frequency domain and time-frequency domain are extracted by using wavelet package decomposition.
利用多传感器对切削力和振动信号进行监测，通过频率变换提取切削力特征量，采用小波包分解技术提取振动信号特征量。
This led to corner cutting and-with surprising frequency-falsification of data.
其结果导致投机取巧了，伪造数据资料，其频繁程度使人吃惊。
The speed of main motor can be adjusted in variable frequency so as to adapt different cutting force and drilling speed.
主电机可变频调速，以适应不同的切削力和钻孔速度。
The cutting speed can be adjusted by stepless frequency conversion to suit materials in different hardness.
切削速度可以无级变频调速，以适应不同硬度材料加工。
Furthermore, the influences of SAWF center frequency are display by the curves, as a result, this cutting error have a kind of influences on centre frequency of SAWF.
计算结果表明，这种切割误差对声表面波滤波器中心频率有一定影响。
The effective ways to achieve the wider fiber formation regions can be obtained by increasing the cutting speed and the relief angle of tool, and decreasing the frequency of vibration staff appr…
提高切削速度、降低振动杆固有频率、适当增大刀具后角是扩大纤维生成域的有效途径。
This study designed a system to generate ultrasonic-frequency pulsed plasma cutting arc, and experimentally investigated the vibration characteristics of the high frequency pulsed arc.
本研究设计了一种超声频脉冲等离子切割电弧发生系统，并通过实际切割试验，测试、分析了这种高频脉冲电弧的振动特性。
The results show that the kerf width increases with the increase of laser power, pulse frequency, pulse width and assist gas pressure, but decreases with the increase of cutting speed.
结果表明：缝宽随输出功率、频率、脉宽及辅助氧压的增大而增加，随着切割速度的增加而减小。
The effective ways to achieve the wider fiber formation regions can be obtained by increasing the cutting speed and the relief angle of tool, and decreasing the frequency…
提高切削速度、降低振动杆固有频率、适当增大刀具后角是扩大纤维生成域的有效途径。
Meanwhile, dynamic harmonic response has been made, the vibration response characteristics of cutting part are analyzed from the perspective of frequency response.
同时进行了动力学谐响应分析，从频率响应的角度分析了截割部的振动响应特征。
When advancing large thickness cutting, frequency tracking shall be properly adjusted slow, you'd better adjust it to stable cutting from zero position and ammeter pointer no longer shakes sharply.
在作大厚度切割时，变频跟踪应适当调慢，最好从零位起调至切割稳定，电流表指针不再激烈晃动。
The results of experiment show that the servo method can meet the requirement of non circular cutting system for high frequency, high accuracy and robustness performances.
实验结果表明：该方法能够满足非圆数控车削系统高频响、高精度和强鲁棒性的要求。
Noise value, noise power, noise voltage, vibration power and amplitude vibration were measured under different cutting parameters of technology and frequency spectrum analysis was also made.
在不同的锯切工艺参数和锯片结构下，测量了噪声值、噪声功率、噪声电压、振动功率和振动幅值，并对其进行频谱分析。
The table reciprocating is controlled by the convertible frequency electric installation, so the speed is constant and adjustable and the wood-panels cutting are more tidily.
台面往复由变频电气装置操纵；速度匀速可调，板材切割更整齐。
The method of bus encoding is for cutting down the transition frequency.
为了降低总线翻转率通常对总线进行编码。
The precision of phase velocity calculation can be improved by the frequency zooming and the signal cutting techniques.
通过细化技术及干扰信号切除方法可提高相速度计算精度。
The precision of phase velocity calculation can be improved by the frequency zooming and the signal cutting techniques.
通过细化技术及干扰信号切除方法可提高相速度计算精度。
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