例句與造句

1. in this thesis, the main contents are following : 1 . reviewing the theory of nonlinear frequency conversion . quasi-phase-matching is discused . presenting the method for configuring periodically poled as well as multiple period superlattice
   闡述了非線性頻率變換的原理，討論了相位匹配和準(zhǔn)相位匹配技術(shù)，著重說明了周期和準(zhǔn)周期光學(xué)超晶格的工作原理。
2. the method can be used in the measurement of periodic and nonperiodic signal . according to the high accuracy and fixed gate-time measurement method, based on the multiple period synchronization method, the high speed, high accuracy and continuous frequency measurement is accomplished
   將其再與一種從多周期同步法發(fā)展而來的高精度、定閘門法相結(jié)合，從而實現(xiàn)了高速、高精度、連續(xù)頻率測量，這非常適合非頻率量的頻率傳感信號的測量。
3. analysis of ambiguity-function of lfmcw radar, including symmetrical triangular lfmcw signal and multiple periods ’ symmetrical triangular lfmcw signal . 3 . this dissertation advances new theories of lfmcw radar signal detection and estimation, including method for acceleration and velocity estimation based on polynomial phase transform; method for multi-target acceleration and velocity estimation based on modification polynomial phase transform
   包括基于多項相位變換的lfmcw雷達速度和加速度估計方法;基于修正多項相位變換的多目標(biāo)lfmcw雷達速度和加速度估計方法;基于一般高斯噪聲環(huán)境下的lfmcw雷達速度和加速度聯(lián)合估計方法;另外提出了基于頻域增采樣內(nèi)插方法以提高lfmcw雷達測距精度。
4. in the paper, prescale technology, interpolate method, averaging method and multiple period synchronization method are used to measure the frequency accurately . diode demodulating technology, and power attenuated method or probe coupling & water load technology are employed to measure the power of high power microwave . isothermal technology is used to improve the stability of demodulator and to expend the range of square linear region
   本文采用預(yù)分頻法、內(nèi)插法、多周期同步法、平均法實現(xiàn)了頻率的精確測量;利用二極管檢波技術(shù),結(jié)合衰減法或探針耦合+水負(fù)載技術(shù)實現(xiàn)了大功率微波功率的測量;采用恒溫技術(shù)提高了二極管檢波器穩(wěn)定度;完成了單片機串口通信協(xié)議設(shè)計和系統(tǒng)電磁兼容的分析和設(shè)計。
5. in this paper, a mixed method with the combination of advantages of analog and digital is discussed . it consists of two parts, analog and digital . first capacitance is converted to frequency by analog part, which makes the relations between capacitance and frequency, then high accuracy and instantaneous frequency measurement is accomplished by digital part based on the multiple period synchronization method
   隨著數(shù)字電路的成熟,也有數(shù)字方法。本文結(jié)合模擬和數(shù)字方法兩者的優(yōu)點,采用模/數(shù)混合方法。該方法由模擬和數(shù)字電路兩部分組成,首先由模擬電路建立電容到頻率的函數(shù)對應(yīng)關(guān)系;然后由數(shù)字電路對頻率計數(shù)。
6. It's difficult to find multiple period in a sentence. 用multiple period造句挺難的