The Design and Optimization of Movement Combination for Oval Gear and Sine Mechanism
卵形齿轮与正弦机构的运动组合设计及其优化

Transformer Protection Scheme Based on the Sine Curve Fitting of Differential Current
基于差动电流正弦曲线拟合波形的变压器保护原理

Durable peace is a sine qua noncondition for Africa to deal with the other challenges.
持久和平是非洲应对其他挑战的先决条件。

In addition, dynamic responses of the system in sine voltage excitation were discussed.
讨论了系统在正弦激励电压信号下的响应。

He soon found that freedom from fear of arrest was not the sine qua non of his existence.
他很快就发现, 消除对被捕的恐惧, 并不是他生存的必要条件。

Tapered bearing seatings are checked using ring gauges, special taper gauges or sine bars.
圆锥形轴承基座则采用环规，专用锥度规或正弦规检查。

feeding system adopts imported linear guide pair, with high accuracy and long service sine.
进给系统采用进口直线轴承运动副, 精度高, 稳定性好

The high frequency sine wave is modulated by adding the modulating signal to it in a mixer.
高频率的正弦调制波通过添加调制信号在混频器。

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。

This paper uses sine series and polynomial to derive the bar of slope deflection equations.
本文用正弦级数与多项式推导杆件得角变位移方程式。

The variation of sediment concentration with time was the attenuation trend of half sine wave.
坡面径流泥沙含量随产流时间呈半正弦波衰减趋势

The damping behavior of air spring equipped with fixed throttle to sine excitation is analyzed.
分析装有固定节流阀空气弹簧对正弦激扰的减振性能。

Development of Battery Discharge Device Feeding Energy Back with Single Phase Sine Wave Inverter
单相正弦波逆变蓄电池并网放电装置的研制

Education， it was believed， was the sine qua non to achieve progress and to unify the nations.
教育被认为是进步和国家统一的必要条件。

Study of the Influence of Sine Vibration on Bit Error Rate in Intersatellites Optical Communications
卫星光通信中正弦振动对误码率影响研究

The sine law of the variation of the light intensity with the cylinder diameter has been emphasized.
强调指出了光强随圆柱体直径变化的正弦规律。

The creation of a peaceful environment is a sine qua non for ensuring economic and social development.
建立一种和平的环境是确保经济与社会发展的必要条件。

This is the sine qua non to ensure that a period of peace and political stability can take root in my country.
这是确保和平与政治稳定时期能在我国扎根的必要条件。

Democracy and security constitute the sine qua non condition for effective, sustained and equitable development.
民主与安全构成了有效，持续和公平发展的必要条件。

The Comparison of Axial Energy? s Decaying Property Between Sine and Isosceles Trapezium Electromagnetic Wave Pulse
正弦脉冲与等腰梯形脉冲传播特性的比较

Phase Angle Phase angle refers to the relation between two sine waves which do not pass through zero at the same time.
相角相角指的是两个不同时经过零点的正弦波之间的关系。

Moreover, the solution composed by algebraic polynomial with double sine series is used to satisfy the corner conditions.
另外用代数多项式和双正弦级数组成的解来满足角点条件。

Such neversaydie approach is the sine qua non for the ultimate triumph in entrepreneurship and technological breakthrough.
这种永不言败的风气, 是创业成功和技术突破所不可或缺的。

Analysis and calculation of the random disturbance signals synthesized through sine waves by using block diagram simulation language
利用方框图仿真语言分析求解正弦合成的随机扰动信号

When the last pure note had faded, I felt, for the first time sine our son's death, a sense of peace, of the positive continuity of life, of renewed faith and hope.
当最后一个清纯的音符飘向辽远时，自儿子去世以来，我第一次感到心中如此平和，生命是如此积极向上，信念和希望也得以恢复。