例句與造句

1. According to the radar - absorbing model , the performance of rams of various absorber - volume - percentage with various frequency and the radar obsorbing performance of which in various thickness is predicted . according to the radar - absorbing model , the prerequisites of microwave electromagnetic parameters and the border curves for a single - layer homogeneous absorbing coating backed by a perfectly conducting plate to produce zero specular reflection are obtained by the steffensen speedup approach to solve the complex transcendental equation
   以吸波模型為依據(jù)，用計(jì)算機(jī)求解了單層均勻各向同性吸波材料的阻抗匹配條件，通過數(shù)值模擬得到了吸波材料阻抗匹配時(shí)電磁參數(shù)邊界曲線的數(shù)值模擬等式和阻抗不匹配時(shí)寬帶吸波材料電磁參數(shù)的合理搭配規(guī)則和頻散特性。
2. The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available . these results pointed out the direction to develop rams " . according to the radar - absorbing model , the optimized design of rams with thin - layer , light - weight , broadband and strong - absorbing is available by the simple genetic algorithms , which can effectively conduct the research work of rams to the detail . small but completely , the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up , the object function has been constructed which conform to the involved goals , the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage , the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness . when decoding , the variable restricting conditions of thickness are dynamically traced , so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient . similary , of thickness and absorber - volume - percentage , of light - weight multiple - layer multiple - ingredient . also , the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function
   作為遺傳算法的具體實(shí)施：根據(jù)本實(shí)驗(yàn)室近來研制的吸波材料，建立了吸波材料的相關(guān)數(shù)據(jù)庫；構(gòu)造了能真實(shí)體現(xiàn)“薄、輕、寬、強(qiáng)”優(yōu)化目標(biāo)的目標(biāo)函數(shù)；根據(jù)材料的實(shí)際數(shù)量以及涂層厚度精度要求、吸收劑體積分?jǐn)?shù)精度要求，建立了能動(dòng)態(tài)擴(kuò)展相應(yīng)碼長的自適應(yīng)編碼方法；首創(chuàng)了通過動(dòng)態(tài)跟蹤變量的約束條件來控制涂層總厚度的解碼技術(shù)，以此實(shí)現(xiàn)了在不弱化寬頻、高強(qiáng)的吸波性能目標(biāo)的同時(shí)，兼顧到薄層、輕質(zhì)的使用性能要求；在解碼時(shí)通過動(dòng)態(tài)跟蹤厚度變量的約束條件，實(shí)現(xiàn)了多層單組分吸波涂層對(duì)重量輕的要求；通過動(dòng)態(tài)跟蹤厚度變量的約束條件和吸收劑體積分?jǐn)?shù)的約束條件，實(shí)現(xiàn)了多層多組分吸波涂層對(duì)重量輕的要求；使用權(quán)重系數(shù)變化法，實(shí)現(xiàn)了吸波涂層的分頻段吸波性能要求。
3. It's difficult to find border curve in a sentence. 用border curve造句挺難的