变化性的

With the change of society and advancement of technology,especially with the coming of information age,fast development of the network and subtle change of ideas of value,the influence of social environment makes undergraduates love psychology based on the sexual psychology and action in network amativeness occur prodigious change.

随着社会的变迁和科技的进步，尤其是随着信息时代的到来，网络的飞速发展以及人们价值观的微妙变化和社会环境的影响，当代大学生以性心理和"网恋"心理为基础的"恋爱"心理发生了显著的变化。

By comparing and analyzing the dynamic changes of carbonitride in the floral sex determination of litchi we found that: higher C/N and lower amino acid content are beneficial to androecium differentiation; in contrast, lower C/N and higher amino acid content are adequate for gynoecium differentiation; the amino acid content in androecium is only half of that in gynoecium.

荔枝花性决定中碳氮化合物的动态变化的研究结果发现：C/N较大有利于雄蕊分化，反之则有利于雌蕊分化；氨基酸含量较高有利于雌蕊分化，雄蕊的氨基酸含量仅为雌蕊的一半；脯氨酸与花粉育性存在着密切相关关系。

The fertilizer test base on three aspect of grain size、growth velocities 、rate of the green parts, the result present that IBDU multiple fertilizer is bigger grain size and quirkier hydrolyze rapid and more short release period than UF multiple fertilizer, which work easier burning spot on grass leaf of Green lawn; on aspect of growth

肥料对比试验中，进行了颗粒大小、生长速度和绿叶率变化等三个指标的测试，结果指出IBDU技术肥料相对UF技术肥料在沙土环境中具有水解速度快，养分释放周期短等特点，并且大颗粒的IBDU技术肥料容易在水解过程中对果岭草坪产生灼烧性斑点，而对比试验使用的UF技术肥料由于粒径较小相对克服了此点不足；在生长速度和绿叶率变化方面，IBDU果岭均提前于UF果岭达到生长高峰和全绿率，也提前下降生长速率和绿叶比值，试验最终IBDU果岭的日生长量和绿叶率均明显低于UF果岭的数值。

The results showed S curve for effects of NaCl stress on germination of watermelon seed, the middle point between two inflexions of the curve was at 120mmol/L and could be used as referenced screening concentration to study 'ZQK0395' salt tolerance genetics, the second curve inflexion was at 180mmol/L and could be used as referenced concentration for 'ZQK0395' salt-tolerant germplasm selection.

结果表明，NaCl胁迫对种子发芽的影响呈S型变化曲线，120mmol/L为S型曲线两个拐点中间值，可作为该种质资源耐盐性遗传研究的参考鉴定浓度，180mmol/L为S型曲线的第二个拐点，可作为该种质资源耐盐性参考筛选浓度。

objective to observe the protective effect of qiliqiangxin capsule in rabbit heart ventricle reconstitution of chronic heart failure.methods using the method of giving rabbit abdomen aorta half ligations to build the chronic heart failure model to observe qiliqiangxin capsule the effect to blood flow mechanics index,room wall thickness,heart exponent and heart ventricle reconstitution biochemistry index.results qiliqiangxin capsule could reduce effectively bp,lvsp,lvedp,t wave,improve room wall thickness and heart exponent,reduce angii and alt,all the paramenters ahd notable difference,composed to those of model group (p＜0.05,p＜0.01).conclusion qiliqiangxin capsule can improve the blood flow mechanics change of chronic heart failure rabbit,which has notable inhibitory action on heart ventricle reconstitution which originate from chronic heart failure.inhibition of ang ii,alt of immune nerve endocrine system may be a mechanism of qiliqiangxin capsule.

观察血流动力学、标志心室重构的室壁厚度及心脏指数及肾素―血管紧张素―醛固酮系统相关生化指标的变化。结果芪苈强心胶囊可有效降低血压、左室压、左室末期舒张压、t波，改善室壁厚度和心脏指数，降低血清血管紧张素ii及醛固酮水平，与模型组比较均有显著性差异(p＜0.05，p＜0.01)。结论芪苈强心胶囊可改善慢性心力衰竭兔血流动力学的变化，对慢性心力衰竭引起的心室重构具有显著抑制作用，其机制可能与该药发挥抑制神经内分泌免疫系统rass中angii、ald的水平有关。

Their expression of sterility and the sterility variance with temperature at different development stage were investigated under control conditions by using phytotrons simulating the daily change of air temperature and other factors.

同一发育时期不同温度处理，不育系07A和陕2A的育性随温度的变化而呈型曲线，不育性受盛蕾期温度影响最大的温度值在日均温5℃左右。

By varying the fuel/air/oxygen ratios the oxygen potential of the system may be changed from hi g hly oxidising to highly reducing and significant technologycal versatility is ac hieved.

由改变燃料/空气/氧的比例，可使系统中的氧势，从高氧化性向高还原性变化而实现巨大的工艺适应性。

Different cells,cell density and cell shape lead to comparatively great difference in wood properties and physical mechanical properties, change of wood cells affects change of wood properties including wood quality,wood property and all other aspects,and wood properties decide economic value and directly affect manufacturing and utilization of wood,therefore,the research and analysis on wood cell structure become especially important.

由于树木生长不均匀，使各种树木的木材构造具有多样性，不同细胞体、细胞密度和细胞形状导致了木材材性和物理力学性能存在较大差异，木材细胞的变化影响着木材性质的变化，木材的性质又决定木材经济价值，并直接影响木材的加工和利用，由此对木材细胞结构分析研究就变得尤为重要。

The parametrically excited and forcedly-parametrically excited equations of ship rolling in longitudinal and oblique seas are established.

主要研究内容和结论如下：考虑波面形状引起的船舶初稳性高的变化，假设升沉和纵摇满足准静力平衡，提出了纵浪和斜浪中初稳性高波动项的计算方法。

"This is one of the most exciting current developments in cardiology," said Yacoub. We're seeing dramatic changes in heart function, involving both biochemical and genetic changes.

Yacoub说：这是目前心脏病学的最令人兴奋的发展之一，我们看到了心脏功能的显著性变化，包括生物化学方面和遗传学上的变化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。