不变化

The effect of transgenx Bt cotton on non-target insects The kinds of the dominant species of pests in transgenic cotton field had obvious change, in which the H. armigera was no longer the main pest and the piercing-sucking pests such as Aphis gossypii, Tetranychus urticae, Thrips tabaci etc. rose the main pests. The kinds of the dominant species of predatory natural enemies seemed to be no variation, which was still Propylaea japonica Thunberg. Because of the effect of transgenic Bt cotton on H. armigera laevae-the development delay, the weight reduction, which affected the qualities of parasitic enemies, leading to the reduction of the weight of cocoon and the weight of adult, and the reduction of H.

转Bt基因棉对节肢动物群落整体结构及时序变化的影响 2001保铃棉与冀抗668的相似系数最高(0.8246)，冀抗668、保铃棉与常规防治的相似系数依次0.6459、0.5829，保铃棉和冀抗668与常规不防治的相似系数为0.5669、0.4485.2002 年与冀杭668的相似系数最高(0 。6887)，保铃棉和冀抗668与常规防治相似系数为0.4739、 0.3828，保铃棉和冀抗668与常规不防治的相似系数为0.3124、0.3999，此结果表明，两转Bt 基因棉田节肢动物群落的整体结构一致，相似性较大，与常规防治相比，相似系数有所降低，表明常规功治棉田中人为控制因素对节肢动物有一定影响；转Bt基因棉对节肢动物群落有一定影响，但并不显著。

For the high affinity sites, binding constant decreases with the decrease of the alkyl chain lengh in the surfactants, but for the low affinity sites, binding constant increases and are not distinct when the alkyl chain is dedocyl. The binding sites are related to the alkyl chain lengh, not for the number of hydrophile groups and temperature.Isothermal titration calorimetry has been used to observe the enzyme-catalyzed hydrolysis reaction of urea.

对于高结合位点，结合常数随疏水碳链长度的减小而减小；对于低结合位点，结合常数随疏水碳链长度的减小而增大，相应的当碳链减小至C12时，低结合位点不明显，结合位点数可能只与碳链长度有关，随亲水头基和温度变化不明显。

Aimed at the arising problems such as the cross-incompatibility and hybrid's sterility during distant hybridization of fruit trees, effects of different treatments on cross-compatibility of distant hybridization in stone fruits were studied based on the former studies, then physiological and biochemical changes during hybridization between plum and apricot were primarily discussed, and rescue and culture system of hybrids' embryos were also conducted, further the genetic variation and principle between the hybrids and their parents were analyzed and methods of identification of hybrids were established.

针对果树远缘杂交过程中存在的杂交不亲和性及杂种不育性等问题，在前人研究的基础上，研究了不同处理对核果类果树远缘杂交亲和性的效应，并探讨了李、杏属间杂交过程中发生的生理生化变化以及花粉与柱头的互作，建立了李、杏属间远缘杂种的胚培养技术体系，建立了杂种鉴定检测方法，并分析了杂种后代与其父母本之间的遗传变异及规律，最终将一批远缘杂交新种质定植于大田，同时对自然界存在的杏梅种质资源进行了RAPD分析。

Therefore, non-contact temperature measurement technique becomes the development trend of high temperature measurement and will be used more and more widely in measuring the temperature field of weld arc and pool.

非接触测温主要有辐射法和干涉法，由于测温元件不与被测物接触，不会破坏被测物的温度场，通过与数字图象处理技术相结合，能实现温度场的快速、实时测量，全面、形象的反映温度场的动态变化，因此成为高温测量技术的发展趋势，在焊接熔池和电弧温度场测量中得到越来越多的应用。

The shoe tongue is changed bigger. The shoe tongue button design is similar to 5.5 opening style and hidden shoelace. Air Jordan 21st is the best shoe that I have tested for half a year. Friends crazy about basketball should ask not whether but when to buy it.

而鞋舌变化更大，鞋舌钮扣设计更改成类似5.5的开放式隐藏鞋带设计。air jordan 21是我这半年测试以来最棒的一款鞋，爱打球的朋友你应该问的不是该不该买，而是什么时候买

The stock market re-warmer, there are likely to cause a change in investment ratio, but this proportion will not be an imbalance, because the capacity of the stock market determines this outcome.

股市重新回暖，有可能导致投资比例的变化，但这一比例将不会是不平衡的，因为能力的股市确定这一结果。

L Applied battery range is wide: charge current can be set between 10% to rating, can't be influenced by the change of input current and voltage, keep constant in the process of constant charge and no need hand adjustment.

l 适用电池范围广：充电电流可在10%-额定值内任意设定，且不受输入交流电压变化的影响，在恒流充电期间电流维持不变，无需人为再调整。

L Applied battery range is wide: charge current can be set between 10% to rating, cant be influenced by the change of input current and voltage, keep constant in the process of constant charge and no need hand adjustment.

l 适用电池范围广：充电电流可在10%-额定值内任意设定，且不受输入交流电压变化的影响，在恒流充电期间电流维持不变，无需人为再调整。

The product quality is soft, touch the hand feeling good, the color is diverse, being easy to wipe the dirty mark;Bear the oil resistant to cold and the anti- is aging, having to tear to pieces the strength with the high and flexible and good anti-, change to the temperature and can like with the anti- patience of the ultraviolet ray, constant color of constant quality.

产品质地柔软，触摸手感好，色彩多样，易于擦拭污垢；耐油耐寒并且抗老化，具用高弹性和良好的抗撕裂强度，对温度变化和紫外线的抗耐性能好，不变质不变色。

With the methods of experimental comparison and mathematical statistics,this paper makes the comparison between Star teaching model and traditional model.The main purpose is to discuss the better teaching model with the comparison,analysis,and induction of statistical data in three tests.The results show that there are more validities and rationality of Star model in the aspects of the effect of study,quantification of teaching,comparative analysis.

经过文献资料的比较和分析，现代定向越野运动无论在技术教学的基本观点上还是在技术的外形和内涵上都有了新的变化和发展，但方法还是比较单一，且大部分采用的是定性分析方法，分析体能、技能的构成、比重时只着眼于整体，一定程度上不够确切，不能细化地作定量描述，因而，学生对技术的分析、认识也必然带有相对的模糊性，不可能从技术的本质上作深入的分析，进而有效地解决问题。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。