1) non-instantaneous section envelope machining principle
无瞬心包络法
1.
By using the non-instantaneous section envelope machining principle, a mathematical model of mold grinding helical-spur cylinder gear is established,which is a calculating method to shape axile sectional of grinding wheel for numerical control mold grinding helical-spur cylinder gear.
利用无瞬心包络法成形加工的原理 ,建立了成形磨削斜齿圆柱齿轮的一种数学模型 ,为斜齿圆柱齿轮数控成形磨削的砂轮轴向修形提供了一种计算方法。
2) non-instantaneous-pole envelope
无瞬心包络
1.
With regard to the question how to cut the helical camber of screw-pump and spiral rod drilling tool in the field of petroleum machine and chemical machine, this paper firstly puts forward the cutting method how to apply the milling with non-instantaneous-pole envelope principle with plate milling cutter in our country.
本论文针对石油、化工机械领域螺杆泵、螺杆钻具转子的螺旋曲面切削加工问题,在国内首次提出了应用盘铣刀的无瞬心包络铣削加工方法。
3) non-instantaneous center envelope milling
无瞬心包络铣削
1.
In order to enhance the helical-surface of the screw efficiency and the precision in the non-instantaneous center envelope milling,analyzed and compared the commonly used data fitting algorithm,proposed suited the numerical control processing programming the method,Step-Changing Method,it is a common method in NC programming.
为了提高螺杆的螺旋曲面在无瞬心包络铣削中的效率与精度,分析比较了常用数据逼近算法,提出了适合无瞬心包络铣削数控加工的编程方法,即伸缩步长法。
4) Inner Whirlwind Non-instant Center Envelope
内旋风式无瞬心包络铣削
5) instantaneous envelope
瞬时包络
1.
The proposed algorithm extracts the instantaneous envelope of the signals based on the Hilbert transform,and then the distribution vectors of the instantaneous energy are extracted.
该方法在通带内利用Hilbert变换提取瞬时包络,然后统计瞬时能量分布向量作为特征向量来实现调制方式分类,避免了搬移到基带过程中带来的频差、相差等计算误差。
6) method of instant center
瞬心法
1.
A new way to calculate the stiffness factor of the slope bar in structural mechanics based on the method of instant center in mechanics of theory is presented.
以理论力学瞬心概念为基础,结合结构力学位移法,提出了一种计算斜杆刚度系数的简易方法———瞬心法。
补充资料:心包
心包 心脏的外围组织,包裹着心脏,附有络脉,以通行气血。又称心包络或膻中。具有保护心脏的作用。因为心包是保护心的,所以无论在生理方面或病理方面,往往都能够代表心的作用。脏象学说认为,喜乐本是心所主的生理表现,但却是通过心包反映出来的。心包对心的保护作用,主要表现在病理上,因为它是心的外围,所以当外邪侵袭心脏时,首先侵及心包络,以减轻或避免邪气对心脏的损伤,因此说心包能代心受邪。如温热病“温邪内陷”时出现的神昏、谵语等心神异常症状,其病变部位多在心包,往往称为热入心包 ,或热闭心包。属于心包的经脉为手厥阴心包经,与手少阳三焦经相互络属,构成表里相合的关系。 |
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参考词条