In silk, it would be better to describe the chains as being antiparallel . 在蠶絲中,更確切地講,這些鏈?zhǔn)欠聪蚱叫械摹?i class="labawb" onClick="playMp3('sound_c_1')">
With a given collimator the integrated reflections in the parallel and antiparallel positions will be equal . 對(duì)于一個(gè)給定的準(zhǔn)直器,在平行和逆平行位置時(shí)積分反射是一樣的。
We consider a neutral particle with magnetic moment antiparallel to the field . with the interaction potential energy between the magnetic moment of the particle and the magnetic field , we obtain the classical motion equation of the neutral particles in the loffe trap . in some limit conditions , by using the perturbative method , the equations may take on concise forms . of which the two equations about x and y are mathieu equations . if we properly set the parameters and have the condition a > > q > 0 , we can solve the mathieu equation with the traditional wkbj method . as a new attemptation , with fourier series expansion we solve the mathieu equation and obtain the classical motion law of the neutral particles 若阱的參數(shù)設(shè)置使得條件> > q 0成立時(shí),我們可以利用傳統(tǒng)的wkbj方法近似求解馬丟方程。作為一種新的嘗試,本文還采用傅立葉級(jí)數(shù)展開的辦法來對(duì)馬丟方程進(jìn)行求解,從而得到中性粒子在阱中的經(jīng)典運(yùn)動(dòng)規(guī)律。在研究ioffe阱對(duì)中性粒子的囚禁問題時(shí),實(shí)際上我們更感興趣的是馬丟方程的周期解,而要想獲得這種周期解,和q必須滿足一定的關(guān)系,亦即必須選擇阱的特定的參數(shù)和粒子的特定初始條件,對(duì)這一問題我們進(jìn)行了嘗試性的研究。
3 . the solution for the distribution of potential internal the dielectric ellipsoid has been obtained by means of ellipsoidal coordinates , and has obtainted the expression of the polarization field strength in the dielectric ellipsoid , calculated the included angle value of polarization vector and the external field vector , making programe to compute to get the relation shetch between the included angle value of polarization vector and the external field vector and we have discussed the result and hold that the direction of polarization field strength with that of the external field don ’ t always strict antiparallel 二、討論了帶電粒子在均勻電磁場(chǎng)中的相對(duì)論運(yùn)動(dòng)規(guī)律。三、討論了在均勻電場(chǎng)中電介質(zhì)橢球體的極化規(guī)律。證明了電介質(zhì)橢球內(nèi)的極化場(chǎng)強(qiáng)方向與外電場(chǎng)方向并非嚴(yán)格相反,只有當(dāng)外電場(chǎng)與電介質(zhì)橢球的某一主軸平行或者當(dāng)橢球體三半軸的大小都相等時(shí),極化場(chǎng)強(qiáng)方向與外電場(chǎng)方向才嚴(yán)格相反。
It also gives the motive of the ka - band vco and mixer , associated with the subject ' s requirement and the realistic conditions , according to which a proposal is confirmed that the gunn diode and the varactor are mounted in the same cavity to fulfill the vco and an antiparallel diode pair is used to fulfill the harmonic mixer . in chapter 2 , based on the basic theory of negative resistance oscillating , we analyses the gunn oscillator and it ’ s tuning character . chapter 3 introduces the theory of millimeter - wave harmonic mixer 以此為根據(jù)結(jié)合課題需要和實(shí)驗(yàn)室的實(shí)際條件,確定vco采用耿氏管腔體振蕩器形式,變?nèi)莨芘c耿氏管安裝在同一個(gè)腔內(nèi)以進(jìn)一步減小體積,采用反向并聯(lián)二極管實(shí)現(xiàn)諧波混頻;第二章介紹負(fù)阻振蕩器理論及其調(diào)諧原理;第三章介紹毫米波諧波混頻器基本原理;第四章給出了振蕩器及諧波混頻器的設(shè)計(jì)過程,整個(gè)組件聯(lián)調(diào)的結(jié)果;最后是結(jié)束語,分析了電路中存在的問題,指出了改進(jìn)方向。
英文解釋
(especially of vectors) parallel but oppositely directed; "antiparallel vectors"