正弦

Abbe's "sine condition", for example, has to be fulfilled by all high-performance lenses and optical systems.

比如他的"阿贝正弦条件"已经被现代高性能镜头和光学系统所验证。

Transient and surge are the instant aberrance of the voltage and electric current on the simple alternating current wave circuit.

瞬变和浪涌是正弦交流波电路上电压与电流的一种瞬时态的畸变。

The absolute convergent interval, the absolute convergence criterion and the realization course are presented.

使用一个周期正弦波曲线模型的滑动拟合法，实现了幅度调制信号波形的精确解调。

In addition, there was some difference in cycle between self – generating sine signal and the actual electrical network, so the great accumulated error and non synchronous error will be presented after several cycles.

另外，由于在传统的傅立叶系数数值求解时，微处理器进行离散化，所用的内部产生的正弦信号周期不能与实际电网周期完全相等，因此在多个电周期后，会有较大的积累误差和非同步误差。

In the first place the auxilium sine quo non is not, in the idea of Augustine,"a grace purely sufficient", since through it the angels persevered; it is on the contrary a grace which confers complete power in actu primo, in such a way that, this being granted, nothing further is needed for action.

摆在首位的auxilium非正弦现状不，在奥古斯丁的想法，"纯粹的宽限期足够的"，因为通过它的天使坚持，这是相反的宽限期，这赋予完整的电源在工会普里莫，以这样一种方式，这是理所当然，没有什麼需要进一步采取行动。

We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.

用复数算术推导了正弦，余弦的加法公式。

We derive the addition formulas for sine and co sine from the arithmetic of complex numbers.

用复数算术推导了正弦，余弦的加法公式。

The Examination of the Sine Bar for the Petroleum Thread Gage;2. The sine bar is a practical precision measuring implement which can measure indirectly or a machining tool for the precision angle by the sine principle.

正弦规是利用正弦函数原理对精密角度进行间接测量或加工的一种常用的精密量具或工具，常用于测量内、外锥体的锥角及外锥体的大小端直径，也用于测量角度块的角度、孔中心线与平面之间的夹角。

The sine bar is coordinates the use gage block according to the sine principle composition standard angle, with by compares the way survey work piece angle and the inside and outside cone's one kind of precise quantity meter in the horizontal direction according to the elemental error.

正弦规是配合使用量块按正弦原理组成标准角，用以在水平方向按微差比较方式测量工件角度和内、外锥体的一种精密量仪。

Finally, the designed sine and cosine sensor are applied on the simulated semi-infinite roof beam to compare their measurement results with the traditional piezoelectric acceleration sensor. The experiment results show that they are applicable and feasible.

最后，在模拟半无限长的钢梁上，利用压电加速度传感器与所设计的正弦形状和余弦形状传感器测量进行比较，实验结果表明，设计制作的正弦形状和余弦形状传感器是适用可行的。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。