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cross experiments
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  正交试验
     The effect and their optimal concentration of sodium b e nzoate (A),potassium sorbate (B),sodium sulfite (C) on the storage of watermel on were studied by single factor experiments and cross experiments. And the cha r acteristics of antifreezing,anti-high-temperature of watermelon preservative were discussed.
     用单因素试验和正交试验法探讨了西瓜保鲜剂的主要成分苯甲酸钠(A)、山梨酸钾(B)、亚硫酸氢钠(C)等对保鲜西瓜所起作用的大小及最佳浓度,并就西瓜保鲜剂对西瓜的耐寒及耐热性的影响进行了探讨。
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     First , the silk are grafted with glycercl glycldyl ether though microwave irradiation. Through orthogouality cross experiments the optimal technical procedures are revealed as follow: glycercl glycldyl ether concentration of 30% , microwave power of medium-low fire, irradiation time of 60 minutes, existing initiator.
     首先在微波辐照下真丝织物接枝丙三醇缩水甘油醚,通过正交试验得到了最优工艺路线为:丙三醇缩水甘油醚浓度30%,微波辐照的强度为中低火、辐照时间60秒,有引发剂的存在。
短句来源
     The optimal reaction conditions of degrading plant cellulose with acetic and hydrochloric acid were discussed by cross experiments.
     采用正交试验法探讨了乙酸、盐酸等稀酸降解植物纤维素的最佳反应条件.
短句来源
     The optimunm conditions of degrading plant fiber of cellulose with single acids such as acetic acid, oxalic acid, hydrochloric acid and sulphuric acid were studied by cross experiments.
     正交试验法探讨了乙酸、草酸、盐酸、硫酸等单酸降解植物纤维素的最佳条件。
短句来源
     Research for the optimun conditions of degrading plant fiber or cellulose with single acids by cross experiments
     正交试验法探讨单酸降解纤维素的最佳条件
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  正交实验
     By cross experiments the optimum condition are obtained: the amount of flour powder added 1%,the amount of lactic acid added 1%,inoculating size 1% and fermentation time 22h.
     通过正交实验确定了丹贝制备的最佳工艺条件为面粉添加量1%、乳酸添加量1%、接种量1%及发酵时间22h。
短句来源
     PP/CaCO 3 nanocomposites were prepared with calcium carbonate encapsulated by in-situ polymerized organic monomers by melt mixing process. The effect of the ratio of filler/encapsulating polymer,the contents of grafting PP and fillers on the Izod impact strength of PP were studied by cross experiments. The result showed that the Izod impact strength of the composite increased to two times that of raw PP with 5 % nanoparticle calcium carbonate encapsulated polymer.
     通过有机单体原位聚合包覆的CaCO3 与PP熔融混合制备了PP/CaCO3 纳米复合材料 ,经过正交实验研究了填料 /包覆聚合物比、接枝聚丙烯以及复合填料含量对PP缺口冲击强度的影响 ,结果表明 :复合纳米CaCO3 只需填加 5 %就可以将缺口冲击强度提高为原树脂的 2倍左右
短句来源
     The mix proportion for shale pottery thermal insulation mortar and cement to achieve optimal insulation effect was determined by Cross experiments.
     由正交实验研究得到了页岩陶砂保温砂浆水泥组样达到最佳保温效果的配比方案。
短句来源
  杂交试验
     The influence of age of fruit fly on its 50% effective close (ED_(50)) for sevoflurane was observed in this study to determine when is the best age of fruit fly for studing hereditary cross experiments.
     本系列研究观测了日龄对野生黑腹果蝇的七氟醚半数麻醉有效浓度(ED_(50))的影响,以便为果蝇遗传杂交试验提供日龄指导;
短句来源
     The method presented in the paper can be used to measure synthetic heterosis of multi character of other types of cross experiments of maize and other crops.
     本文所提出的方法也可用于其它类型玉米杂交试验和其它作物杂交试验多性状综合杂种优势的测定
短句来源
     Cross experiments and analysis of the position of meiosis in Porphyra haitanensis (Rhodophyta)
     坛紫菜减数分裂位置的杂交试验分析
短句来源
     The presented method can be used to measure synthetic heterosis of multi-character of other kind of cross experiments.
     本文所提出的方法也可用于测定其它类型杂交试验多性状综合杂种优势。
短句来源
     The LD50 value of a resistant strain,for example Dong34,was 5. 9 times higher than that of a susceptible one,Hua 7. Further cross experiments revealed that the heterosis of resistance to isoprocarb in most combinations and the overparent hererosis in partly combinations was shown in the studies,and the maternal influence upon the resistance of F1 hybrid was greater than paternal.
     进一步杂交试验显示,大部分组合的杂种F_1已代对叶蝉散的抗性比两亲强,有杂种优势现象,部分组合还表现出超亲优势,且母本对杂种F_1代抗性的影响大于父本;
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  “cross experiments”译为未确定词的双语例句
     In laboratory studies on the radios and Q-value (SO_3/CaF_2) of low temperature sin- tered portland clinker by multi-factor optimum seeking cross experiments,it is found that the optimum composition are KH=0.95,n=1.7,P=1.4 and q=1.5 when the CaF_2 content in raw meal is 0.8% and the sintering temp. 1320℃.
     在实验室中,用多因素试验正交优选法对低温煅烧硅酸盐水泥熟料的率值和 q 值(SO_3/CaF_2)的选择进行了研究。 发现在1320℃的煅烧温度下,当生料中的 CaF_2含量为0.8%时,率值及 q 值的最佳组合是:KH=0.95,n=1.7,p=1.4,q=1.5。
短句来源
     In the F_2 generation, JBW/JBM was 3 to 1. In the BC_1(♀F_1×♂JBM) generation, JBW/JBM was 1.3 to 1. In the F_3 and F_1 generation of BQ, no JBW phenotype appeared. In one to one cross experiments of JBW×JBM(-);
     单对正交结果中,F_1代的181头后代均为JBW表型,F_2代JBW表型与JBM表型比为3∶1,BC_1代JBW表型与JBM表型比为1.3∶1,F_3代的109头后代均为JBM表型,BC_1代的F_1代的112头没有出现一例JBW表型。
短句来源
     In cross experiments between the mutant strain and the wild strain, F_1 population had middle (brown) phenotype.
     F_1代的自交实验中,正常型、中间型与突变型比为1.04∶2.02∶1;
短句来源
     The cross experiments indicated that the average matching relative error and the average prediction relative error of this model, was 0.0063% and 0.1210% respectively. The model was applied to predict the concentration of CO_2 in the exit of purifying column.
     交叉验证表明,所建模型平均拟合相对误差为0.0063%,平均预报相对误差为0.1210%,该模型可用于提纯塔出口CO2浓度的预测。
短句来源
     The antiserum produced showed special sensitivity to the parathion in the enzyme linked immunosorbent assay,binding and inhibition experiments,which demonstrated that the lowest limited concentration is as low as 0 1 ng·mL -1 and the I 50 is 5 2 ng·mL -1 in the condition of pH 7 4.Cross experiments showed that the polyclonantibody in the serum was very high active to parathion,much less to the reduced paration,and little to other metabolits,Metho parathion,P nitrophenol.
     在对硫磷的标准抑制曲线中 ,当pH 7 4时 ,I50 为 5 2ng·mL-1,检测限可低于 0 1ng·mL-1。 交叉试验表明 :产生的特异性抗体与对硫磷反应明显 ,与其代谢的初级产物有交叉反应 ,与结构类似物 4硝基苯酚及其他类似物交叉反应不明显 ,与甲基对硫磷的交叉反应亦不明显
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  cross experiments
Cross experiments demonstrated that heart tissues differed immunologically in patients with atherosclerosis and healthy individuals.
      
The frequency and magnitude of heterosis were examined in relation to genetic divergence among parents in two diallel cross experiments in groundnut.
      
Cross experiments showed that each of the two forms had form-specific alleles for MDH.
      
Back-cross experiments indicate that the observed allelic modulation is not dependent upon a simple or classical type of regulatory system.
      
The cross experiments on cytoplasmic inheritance in Epilobium reveal the important fact that the cytoplasm of the cells contains numerous constituents (viz.
      
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Seven quantitative traits of the cultivated potato (S. tuberosum and S. andigena) were studied in a partial diallel cross experiment. The results of this stuty consisting of 25diallel crosses combinations of five Tuberosum femal parents and five Andigena male parents were obtained.

本试验是在1979—1981年闯进行的,采用不完全双列杂交的方法,以五个普通栽培种为母本(经过六代自交),以五个新型栽培种为父本(经过四代自交)配制25个组合。实生种籽用纸营养钵于温床育苗后移栽到大田获得实生块茎,分别栽于哈尔滨和四川,按七个性状考种分析结果:在哈尔滨普通栽培种中,株高、叶宽、块茎重、平均块茎重的一般配合力均以20005为最高。而叶长以呼130为最高,淀粉含量以呼130为最高。在新型栽培种中,叶宽、块茎重、块茎数、平均块茎重以30115为最高,而株高以30120为最高,叶长以30071为最高,块茎数、淀粉含量以30086为最高。在特殊配合力中,块茎重以20005×30071为最高,块茎数以20058×30086为最高,平均块茎重以20005×30071为最高。在四川短日照条件下,普通栽培种中,株高、叶宽、块茎重、平均块茎重一般配合力均以20005为最高,而叶长以20058为最高,块茎数以呼130为最高,淀粉含量以20032为最高。新型栽培种中,叶宽、块茎数以30115为最高,株高以30120为最高,叶长以30086为最高,块茎重、淀粉含量、平均块茎重以30054为最高。在特殊配合力中,块茎重以...

本试验是在1979—1981年闯进行的,采用不完全双列杂交的方法,以五个普通栽培种为母本(经过六代自交),以五个新型栽培种为父本(经过四代自交)配制25个组合。实生种籽用纸营养钵于温床育苗后移栽到大田获得实生块茎,分别栽于哈尔滨和四川,按七个性状考种分析结果:在哈尔滨普通栽培种中,株高、叶宽、块茎重、平均块茎重的一般配合力均以20005为最高。而叶长以呼130为最高,淀粉含量以呼130为最高。在新型栽培种中,叶宽、块茎重、块茎数、平均块茎重以30115为最高,而株高以30120为最高,叶长以30071为最高,块茎数、淀粉含量以30086为最高。在特殊配合力中,块茎重以20005×30071为最高,块茎数以20058×30086为最高,平均块茎重以20005×30071为最高。在四川短日照条件下,普通栽培种中,株高、叶宽、块茎重、平均块茎重一般配合力均以20005为最高,而叶长以20058为最高,块茎数以呼130为最高,淀粉含量以20032为最高。新型栽培种中,叶宽、块茎数以30115为最高,株高以30120为最高,叶长以30086为最高,块茎重、淀粉含量、平均块茎重以30054为最高。在特殊配合力中,块茎重以20005×30054为最高,块茎数以20001×30054为最高,平均块茎重以20005×30054为最高。由本试验还可看出,普通栽培种与新型栽培种杂交实生F_1与无性F_1各性状是呈显著正相关的,因此今后在做配合力鉴定时,即可利用纸营养钵育苗,采用群体取样的方法即可估计出杂种第一年无性系的配合力。

Finger joining has been proved an effective method for extending timber length. The authors of this article made cross experiments on the present-day commonly applied type of finger joint, using eastern larch (Larix larcina). The experiments showed that the urea-resin adhesive produced a better effect; a bigger pressure from both ends was preferable, generally about 30kg/cm2; loading directions of the finger joint did not significantly affect the static bending strength with the vertical direction...

Finger joining has been proved an effective method for extending timber length. The authors of this article made cross experiments on the present-day commonly applied type of finger joint, using eastern larch (Larix larcina). The experiments showed that the urea-resin adhesive produced a better effect; a bigger pressure from both ends was preferable, generally about 30kg/cm2; loading directions of the finger joint did not significantly affect the static bending strength with the vertical direction loading being a little preferable than the horizontal. The value of the static bending strength of the joint could be as high as 86% of that of the control specimen of normal wood. The value of the elastic modulus of the static bending of the joint was also determined.

齿榫接合是木材纵向接长的一种有效方法。作者以当前生产中采用的一种齿形,对落叶松材齿榫的接合条件进行了正交试验。试验表明:落叶松材的齿榫接合采用脲醛胶的效果较好;端向压力应尽可能大些,一般宜用30公斤/厘米~2左右;齿榫接合部分的受载方向对静曲强度影响不大。垂直方向受载稍优于水平方向受载。齿榫接合材的静曲强度可达对照试材静曲强度值的86%。试验中还测定了齿榫接合材的静曲弹性模量值。

1. Five cross combinations were obtained by using three different Hor-deum bulbosum ( 4X ) as male parent and some H. vulgare varieties as female parent. Most of the young embryo cells and endosperm nuclei of the hybrids had chromosomes of 2n = 21 and 3n = 28, but chromosome elimination was found in part of the cells 8-12 days after crossing. In the pollen mother cells(PMC) of the F1 hybrids, there were 33-41% of cells having 21 chromosomes; no elimination occurred ( except hybrids No. 20 and No. 22),...

1. Five cross combinations were obtained by using three different Hor-deum bulbosum ( 4X ) as male parent and some H. vulgare varieties as female parent. Most of the young embryo cells and endosperm nuclei of the hybrids had chromosomes of 2n = 21 and 3n = 28, but chromosome elimination was found in part of the cells 8-12 days after crossing. In the pollen mother cells(PMC) of the F1 hybrids, there were 33-41% of cells having 21 chromosomes; no elimination occurred ( except hybrids No. 20 and No. 22), and about 60% of the cells had various number of chromosomes eliminated. Among the F1 hybrids of H. distichum var. Zhenong No. 3.X H. bulbosum from Canada 1/3 of the cells had 7 chromosomes eliminated. But the F1 hybrids prepared with both H. bulbosum USSR and H. bulbosum Hungary generally had 1-4 chromosomes eliminated only. It was considered that in the triploid hybrids chromosome eliminations mainly, occurred in the common barley. The causes of elimination were analysed and discussed.2. In the cross experiment with H. bulbosum ( 4X)as female parent and common barley(2X)as male parent,dihaploid of barley was obtained without the aid of young embryo culture, suggesting that chromosome elimination of H. bulbosum had already occurred. However, it was found that in part of the cells there were 16-17 chromosomes, among which 14 chromosomes were from barley, and the others originated from H. bulbosum.

1.以三个不同的球茎大麦(4x)为父本,分别与二棱大麦各品种(2x)配制了5个杂交组合。杂交后8—12天内,杂种幼胚细胞和胚乳核中,除2n=21和3n=28外,部分细胞中出现染色体消失。在杂种F_1的花粉母细胞中有33~41%的细胞具有21条染色体,不发生消失(杂种大20、大22除外);约占60%的细胞有数目不等的染色体已经消失。其中(浙农3号大麦×加拿大球茎大麦)F_1中有1/3细胞消失了7条染色体,而用苏联的和匈牙利的球茎大麦配制的杂种F_1内一般只消失1—4条。认为在三倍体杂种内主要是普通大麦染色体发生消失。对消失的原因作了一些分析和讨论。 2.用球茎大麦(4x)作母本与大麦(4x)杂交,不需幼胚培养,可得到大麦的双单倍体,表明杂种内的球茎大麦染色体已消失。但发现部分细胞中有16—17条染色体,可能除14条大麦染色体外,还有2—3条球茎大麦染色体保留下来。

 
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