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In the recent 10 years, at the three special fields of dynamic aerodynamics, although the circumferential Reynolds number gap between wind tunnel free flight and its corresponding real flight is as high as one or two magnitudes, wind tunnel free flight experiment results succeed in predicting or reproducing the dynamic aerodynamic characteristics in the three special fields, which appear in the real flight phase producing severe effects on flight security and flight performance.

近10余年来,在3个动态气动专题领域内,地面风洞自由飞实验与对应的天空飞行器的绕流雷诺数虽然相差1~2个量级,但风洞自由飞实验结果多次预测或再现了天空飞行器出现的对飞行安全、飞行性能产生严重影响、其它地面风洞实验方法难以预测或再现的这3个专题领域内的动态气动特性,这至少为3个专题领域内天地动态气动相关中的雷诺数影响,提供了一个新的理解。

Phylogenetic analysis based on 5.8S/ITS sequence indicated Armillaria luteo-virens has a distant phylogenetic relationship with other genera of Tricholomataceae. Phylogenetic analysis based on two IGS-1 sequences indicated there were significant differences between the IGS-1 sequence of Armillaria luteo-virens and that of other species of Armillaria.

基于ITS的系统发育分析表明黄绿蜜环菌与口蘑科内其它属间物种的系统发育关系较远;基于IGS-1的系统发育分析表明黄绿蜜环菌与蜜环菌属内的其它种序列差异较大,系统发育关系较远,而与Lepiota属内的部分种具有较近的系统发育关系。

Phylogenetic analysis based on 5.8S/ITS sequence indicated Armillaria luteo-virens has a distant phylogenetic relationship with other genera of Tricholomataceae.

基于ITS的系统发育分析表明黄绿蜜环菌与口蘑科内其它属间物种的系统发育关系较远;基于IGS-1的系统发育分析表明黄绿蜜环菌与蜜环菌属内的其它种序列差异较大,系统发育关系较远,而与Lepiota属内的部分种具有较近的系统发育关系。

And some knowledge of grid topology is also introduced. The nucleation of condensative steam in the whole flowing field has been displayed. Furthermore, the characteristic of two-phase complex flow is analyzed. In the stationary blade's passage, the flowing status is stable relatively. The steam expanding is comparatively relaxing and the nucleation area of steam is small. In the moving blade's passage, the expanding of steam is tempestuous relatively because of dual-velocity effect; the degree of condensation of steam is considerably distinct.

最后,对有凝结的蒸汽在三维叶栅中的流动进行了模拟,得到了蒸汽凝结流动在整个流道内的流动情况,分析了这种两相复杂流动的特点,在静叶内,流动状态基本稳定,蒸汽膨胀较为缓和,发生凝结的区域很小;在动叶内,由于双重速度的作用使得蒸汽膨胀较为剧烈,相对蒸汽凝结程度比较大。

It is also found that the electroosmotic flow is in the opposite direction to that predicted by the classical continuum theory.

模拟结果表明,在双电层的某个区域内,同号离子的浓度超过了对离子的浓度,出现了电荷倒置现象;约占整个通道的三分之二内的区域内,溶液朝着与连续性理论预测的相反方向流动,出现了反转电渗流。

The results showed that at the beginning stage of being attacked by Chinesis white pine beetle and their symbiotic blue-stain fungus, PAL, PPO, SOD activities and MDA content significantly increased in the phloem of P. armandi, and decreased with the increase of the number of D. armandi and the attacking on the xylem and phloem of P. armandi from blue-stain fungus, then reached the minimum level in withering stage of P. armandi. But the contents of nutrition materials in the phloem, such as water, protein, glucide, fat, amylum and so on, declined with the infestation of D. armandi and symbiotic fungus. In summary, the resistance of physiology and biochemistry in the phloem of P.

结果表明,在华山松大小蠹和共生蓝变真菌危害初期,华山松韧皮部内的苯丙氨酸解氨酶、多酚氧化酶、超氧化物歧化酶活性均显著提高,丙二醛含量明显增加;但随着华山松大小蠹种群数量的增加和蓝变真菌对华山松韧皮部和木质部组织危害的加剧,韧皮部组织内的PAL、PPO和SOD活性逐渐降低,在枯立木阶段降至最低;与此同时,华山松韧皮部内的水分及蛋白质、糖类、粗脂肪、淀粉等营养物质含量,则随华山松大小蠹和共生蓝变真菌危害的加剧而不断减少。

BACKGROUND: Implantation of artificial joint of bone cement can result in long-term blocking of recipient site medullary canal and blood vessel lesion, and lead to changes in intraosseous pressure and bone blood flow of distal femoral shaft.

背景:骨水泥固定型人工关节假体骨腔内的植入必然涉及受区骨髓腔的长期闭塞和髓内血管的破坏,由此而产生的髓内压和血流的变化是材料本身的影响所致,很有研究价值。

The species structure and importance value dynamics of annual plants in herbage synusia during a growth period have been observed, and the ecological mechanisms of these changes have been analyzed also.

通过跟踪观测一年生植物层片在一个生长周期内种类组成及其重要值的变化,并分析变化的生态学机理,得出如下结论:①在固沙区草本层片内,小画眉草的多度、盖度和重要值在群落中所占比例较大,是群落优势种;②在充足的降雨后,一年生植物都突发性萌发,但随着降雨的减少,层片内的一年生植物种群都呈衰退之势,其中小画眉草和虎尾草种群急剧减少,狗尾草、雾冰藜和虫实种群减少幅度不大。

For this purpose, we have placed a Remembrance Book in the church lobby so you may write down the names of those who have gone before us on the special envelope. Put the envelope together with your offering inside the donation box.

各位主内的兄弟姊妹,让我们在主的圣殿内常表现出庄严、神圣的态度,留给自己和他人神圣、安静的祈祷空间,在圣堂内常保持宁静及个人收敛之心,特别常记著在耶稣前表达我们对祂的敬爱,好好的、礼貌地行个跪拜礼、或鞠躬礼。

For the best control effect, a fuzzy control strategy is introduced in the automatic system. 9 intelligent sensors decentralized in each workshop collects each workshop temperature information, then the fuzzy control machine deals with these data, and sends the dealt information to S7-300PLC to control 9 air-conditions placed on rooftop to run.

要保证加工质量,就要保证空调系统能将车间温、湿度在加工期间随时都控制在要求的范围内,为了达到最优的控制效果,该空调自动控制系统还引入了模糊控制策略,利用分布在车间各个位置的九台智能温、湿度传感器采集不同位置的车间温、湿度信息,通过模糊控制器处理后,送入S7-200PLC进行程序处理,控制九台屋顶空调机组动作,实时进行调整,使车间内的温、湿度总能处于系统设定的范围内。

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推荐网络例句

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷

Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.

Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。