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无法估计
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  can ' t estimate
     After presents an even Hammerstein model whose output only relates to its input's square, ana-lyzes the cause why the available correlation algorithms can't estimate this even Hammerstein model, proves that a new correlation algorithm can also be utilized to estimate the even Hammerstein model's parameters if a non-crossed-zero inverse-duplicated M-sequence is used to excitate the systems , and derivates the new correlation algorithm.
     在介绍了一类输出只与其输入的平方有关的偶型H模型之后,分析了现有相关算法无法估计此类模型参数的原因,证明了若采用非过零逆重复M序例做激励信号,则仍然可以用相关方法估计其模型参数,并导出了这一模型参数估计的新相关算法。
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  “无法估计”译为未确定词的双语例句
     In IR26 and 3624-33,their 3 independent resistance genes to W—2 were also linked to their3 independent resistance genes to S—3,however,there was no way toestimate the recombination values either for the gametes or for thegenes.
     在IR26和3624—33中,抗W—2的菌株的3个独立基因均与抗S—3菌株的3个独立基因连锁,但它们的配子重组值和基因重组值均无法估计
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     The methods proposed by Wang et al (1999) could analyze additive effects, additive by additive epistatic effects and their interaction with environments, but could not estimate dominance effects and epistatic effects related to dominance.
     Wang等(1999)的方法能够分析加性效应、加加上位性效应及共与环境的互作效应,但无法估计显性以及与显性有关的上位性效应。
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     Secondly, the common used methods have not been available to estimate two dominance effects of endosperm traits.
     二是现有方法无法估计胚乳性状的两种显性效应。
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     The problem of estimating the initial frequency of the Chirp signal simply by the RAT method can be solved too.
     且使用解调频技术与RAT相配合,解决了单纯RAT无法估计Chirp信号初始频率的问题。
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     (2) Spearman correlation analysis did not show the expression of CD82 was correlated to the expression of VEGF.
     利用寿命表法分别对CD82表达阳性组及表达阴性组进行分析,CD82表达阳性组累积无瘤生存率1年、2年、3年分别为94%、87%、68%,中位无瘤生存时间尚无法估计;
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     b) a G-M estimator of ω'1α, ω'2β and ω'1α+ω'2β under L (Xβ, Aα; δ21V, δ22U} respectively.
     b)G-M估计
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     2. Investors can not accurately forecast revenue of internet companies.
     2.无法准确估计企业未来的收入。
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     A newmethod for the estimation of exponent regularity of the kind wavelet and related scalefunction is proposed.
     Daubechies的估计
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     It is unable to estimate the truncation errors just use the tracking data only.
     仅靠外测数据本身,是无法估计该误差的。
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     Home Unable to Arrive
     无法抵达的归宿
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It wes met with success thet generative stage of mulberry tussock moth was monotored with a chemical compound synthesized in our

采用我们自行研究合成的桑毛虫性信息素(顺—7—十八碳烯醇异戊酸酯)聚乙烯塑料诱芯进行桑毛虫发生期的测报,巳获得成功。试验结果表明,性诱发蛾进度与田间产卵进度具有极显著的相关关系,性诱蛾量能比较真实地反映田间成虫的实际发生情况.用性诱蛾量高峰日预测成虫的产卵高峰和次代幼虫的孵化高峰期,解决了性诱测报中预先无法估计50%发蛾高峰期的难题,这对指导测报和防治具有十分重要的现实意义。与传统的黑光灯诱蛾测报法比较,性诱测报具有准确性高,方法简便,成本低廉等优点,是一项值得推广的新的测报方法。

In 1983 and 1984 experiments with 2 strains,W—2 and S—3,ofXanthomonas campestris pv.oryzae (Ishiyama) Dye to inoculate riceplants p1,p2,F1,P2,and F3 generaton from 8 crosses revealed that ineach resistant parent,the number and action mode of resistance gene(s)to W—2 were the same as those to S—3 .As for the resistance to W—2or S—3,The cvs Early 36 had 2 dominant resistance genes and VT34—12 complementary dominant resistance genes.Both IR26 and 3624—33 had3 complementary dominant resistance genes. In VT34—1,there...

In 1983 and 1984 experiments with 2 strains,W—2 and S—3,ofXanthomonas campestris pv.oryzae (Ishiyama) Dye to inoculate riceplants p1,p2,F1,P2,and F3 generaton from 8 crosses revealed that ineach resistant parent,the number and action mode of resistance gene(s)to W—2 were the same as those to S—3 .As for the resistance to W—2or S—3,The cvs Early 36 had 2 dominant resistance genes and VT34—12 complementary dominant resistance genes.Both IR26 and 3624—33 had3 complementary dominant resistance genes. In VT34—1,there was 1 gene conferring resistance to both strainsW—2 and S—3,and there were 2 other genes,each conferring resis-tance to 1 of the 2 strains.In Early 36,its 2 independent resistancegenes to strain W—2 were linked to its 2 independent resistance genesto strain S—3,respectively,with a gamete recombination value of13.3% and a gene recombination value of 6.887%.In IR26 and 3624-33,their 3 independent resistance genes to W—2 were also linked to their3 independent resistance genes to S—3,however,there was no way toestimate the recombination values either for the gametes or for thegenes.Simultaneous selection of resistance to the 2 bacterial strainswas considered to be feasible.

在1983—84两年中,用赣W—2和赣S—3两白叶枯病菌株分别接种8个杂交水稻组合的亲本、F_1、F_2和F_3代的结果表明,各抗病亲本所具有的抗W—2菌株的基因数目和作用方式均与其抗S—3菌株的基因数目和作用方式相同。就对W—2或S—3菌株的单一抗性来说,早36具有2对显性抗病基因;VT34—1具有2对互补的显性抗病基因;IR26和3624—33都具有3对互补的显性抗病基因。在VT34—1中,有1对基因既控制对W—2菌株的抗性又控制对S—3菌株的抗性,另外2对基因则分别控制对这两菌株之一的抗性。在早36中,抗W—2菌株的2个独立基因分别与抗S—3菌株的2个独立基因连锁,其配子重组值为13.3%,基因重组值为6.887%。在IR26和3624—33中,抗W—2的菌株的3个独立基因均与抗S—3菌株的3个独立基因连锁,但它们的配子重组值和基因重组值均无法估计。预料同时选择对W—2和S—3菌株的抗性非常容易。

This paper transforms the formula estimating substandard product rate under normal conditions by using Decipel unit to obtain a new formula. This formula can not only solve the problem which is difficult to handle in the case of Ti Taj<1/2, but also improves est imating result.

利用Decipel单位表达式、对通常次品率估计式加以改造,得出新的次品率估计式.该式不但解决了以往当T2j<1/2时无法估计值的困难,而且在一般情况下,估计的效果比较好.

 
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