例句與造句

1. A model based on the concept of the hypothetical fcp element is proposed to give the physical explanations to the existence of fcp threshold and why the fcp rate in near - threshold region coul
   提出了近門檻區(qū)內(nèi)“裂紋擴(kuò)展基元模型” ，用于定性地說明何以近門檻區(qū)內(nèi)裂紋擴(kuò)展速率低于原子間距，進(jìn)而解釋了裂紋擴(kuò)展門檻值存在的物理本質(zhì)。
2. Test results and analysis show that the above equation can be applied to represent the fcp test results of various materials in the near - threshold region , the intermediate region of stable crack propagation and the rapid crack propagation region measured at different stress ratios
   實驗結(jié)果和分析證明，該式能用于描述具有各種不同特性材料的包含近門檻區(qū)、中部穩(wěn)態(tài)擴(kuò)展區(qū)和快速擴(kuò)展區(qū)的整個疲勞裂紋擴(kuò)展曲線。
3. Research on the expression of fcp rate had started more than 50 years ago . more than 100 formulas for fcp rate were developed ; among whom formulas describing the whole fcp curve , including the near - threshold region , the intermediate stable crack propagation region and the rapid crack propagation region , can be easily found
   對疲勞裂紋擴(kuò)展速率表達(dá)式的研究已有50余年的歷史，提出的裂紋擴(kuò)展模型和表達(dá)式已達(dá)100多個；其中也有不少能描述包含近門檻區(qū)、中部穩(wěn)態(tài)擴(kuò)展區(qū)和快速擴(kuò)展區(qū)等三個區(qū)在內(nèi)的整個疲勞裂紋擴(kuò)展曲線的表達(dá)式。
4. Main conclusions or / and creative work are given in following . all materials have same fcp pattern , i . e . , the whole fcp curve comprises the near - threshold region , the intermediate region of stable crack propagation and the rapid crack propagation region and with s shape , though the materials have different micro - mechanisms of fcp
   本文的主要結(jié)論和創(chuàng)新點有：首先，認(rèn)為所有固體材料均具有相同的疲勞裂紋擴(kuò)展宏觀規(guī)律，即完整的疲勞裂紋擴(kuò)展曲線都由近門檻區(qū)、中部穩(wěn)定擴(kuò)展區(qū)和快速擴(kuò)展區(qū)所構(gòu)成，曲線具有相似的s形，盡管不同特性的材料具有不同的疲勞裂紋擴(kuò)展的微觀機(jī)制。
5. Based on the analysis and summation , a new formula for fcp is developed as eq . ( 3 . 23 ) or eq . ( 6 . 5 ) , and can be applied to describe the fcp pattern in all three fcp regions , including the fcp in the near - threshold region , the intermediate region of stable crack propagation and the rapid crack propagation region
   在上述總結(jié)和分析的基礎(chǔ)上，給出了描述三個區(qū)的疲勞裂紋擴(kuò)展總體規(guī)律的公式( 3 . 23 )或式( 6 . 5 ) ，即上述表達(dá)式左、右兩端量綱一致，式中的各個參量物理意義明確。
6. It's difficult to find threshold region in a sentence. 用threshold region造句挺難的