机理

The solubility studies may be of assistance in understanding fluxing and electrochemical mechanisms of hot corrosion.

金属氧化物溶解行为的研究将有助于了解热腐蚀的盐溶机理和电化学机理。

Research progress of anti-tumor mechanisms of ginsenoside Rh2（G-Rh2） extracted from ginseng was expounded,and the anti-tumor activity and mechanisms of G-Rh2 were discussed on regula-ting signal access system of tumor cells,reversing abnormal differentiation and tolerance of tumor cells,reducing telomerase activity of tumor cells,strengthening immunological ability,improving anti-tumor ability ,and interdicting synthesis and metabolism of tumor cellular important components etc.

论述了从人参中提取的有效成分人参皂苷-Rh2（G-Rh2）的抗肿瘤机理的研究进展，并探讨了G-Rh2在调节肿瘤细胞信号通路系统、逆转肿瘤细胞的异常分化与耐药性、降低肿瘤细胞端粒酶活性、增强机体免疫力、提高抗肿瘤能力以及阻断肿瘤细胞某些重要成分的合成与代谢等方面的抗肿瘤活性及其作用机理。

The osculating relation exists between rockfill fabric tensor and stress tensor, which have been proved theoretically in this paper. So creep mechanism and deformation law of rockfill can be gained from varying of fabric tensor. As a result creep mechanism of rockfill creep may be revealed from microcosmic view.

堆石体组构张量与应力张量和应变张量有密切的关系，从组构张量的变化可以导出堆石体的变形机理和规律，从而揭示堆石体材料流变变形的细观机理。

The analysis of pigments contained in citrus flesh could elucidate the mechanism of citrus pigmenting, and create a theoretical basis for'pigmenting breeding'and development of colored local cultivars.

果肉呈色色素分析为将来可能的&色泽育种&和有色地方品种的开发提供理论基础，呈色机理的探讨在果树育种学上属于芽变机理的研究范畴，其结果有可能为定向&色泽育种&提供新的思路。

Previous studies focused on cutting and lifting sugarcane stalks, the sugarcane stalks holding and conveying research was almost blank. Researching and designing new holding and conveying mechanism, providing the basis for the design of sugarcane harvester, reducing the plugging and breaking of sugarcane stalk, increasing windrowing quality, reducing power consumption, have important theoretical and practical significance.

以前的研究主要集中在甘蔗切割和扶起方面，对于甘蔗夹持输送机理的研究几乎是空白，研究设计新型的夹持输送机构，研究其工作机理，为甘蔗收割机的设计提供依据，减少甘蔗的堵塞和折断，提高铺放质量，降低功耗，具有重要的理论意义和实用意义。

These specific absorption bands are in relation to the special energy levels.

人们经过十多年的时间，对钛酸盐纳米管的组成、形成机理和物理化学性能进行了大量的研究，但是到目前为止，研究者对其形成机理、可见光吸收等特殊光电性质的来源、结构稳定性等方面的认识尚不清楚，因此本论文对这些方面开展了如下研究：在第二章中我们从热力学的角度系统地研究了煅烧温度对钛酸盐纳米管形貌、结构稳定性和光学性能的影响，发现钛酸钠纳米管是热力学稳定的，而钛酸纳米管是热力学不稳定的。

In order to study the aldol condensation of 2,15-hexadecanedione on the surface of aluminium, the intermolecular condensationmechanism of acetone occurring on aluminum was simulated by usingsemi-empirical AM1 method embodied in MOPAC 6.0 program package.

为了研究2，15-十六烷二酮在氧化铝表面的环合机理，选择小分子丙酮为模型化合物，用量子化学半经验AM1方法研究双分子丙酮在氧化铝表面的醛醇缩合机理。

In order to study the aldol condensation of 2.15-hexadecanedione on the surface of aluminium, the intermolecular condensation mechanism of acetone occurring on aluminum was simulated by using semi-empirical AM1 method embodied in MOPAC 6.0 program package. The optimized structures and geometry parameters of 5 transition complexes and 4 intermediates were given.First, 2 molecules of acetone coordinated with aluminum by electrostatic attraction.One atom of hydrogen of acetone migrated to aluminum because of t...

为了研究2，15－十六烷二酮在氧化铝表面的环合机理，选择小分子丙酮为模型化合物，用量子化学半经验AM1方法研究双分子丙酮在氧化铝表面的醛醇缩合机理，给出了反应过程中的5个过渡态和4个中间体的结构和几何参数，该催化反应可以认为是氧化铝分子与两分子丙酮分子发生静电络合作用，然后借助氧原子的负电荷导致脱氢并实现缩合，根据中间体的能量变化，推测有较稳定的铝复合物生成。

The mechanism of the changes of blood and milk parameters of the sows fed alfalfa meal and fat as well as the mechanism of the interaction of the alfalfa meal with other nutrients need further study.

添加一定比例的苜蓿草粉和定量脂肪，导致血液、猪乳脱脂乳清理化成分发生上述变化的机理，以及苜蓿草粉与其它营养元素的相互作用机理等仍有待于进一步加以研究。

The alkali solution concentration and steam explosion process condition were optimized by testing the solubility of soft cellulose after steam explosion before and after treatment towards aq.NaOH with various concentration. It was concluded that the soft cellulose can dissolve in the 9% aq.NaOH solution completely under the condition of explosion pressure 3.0Mpa and explosion time 60s. At the same time, the influence of sweller-thiourea on the new aq. alkali soluble cellulose/NaOH solution was studied in this paper. The dissolving phenomena and the steam explosion mechanism of soft cellulose were discussed.

本文通过对闪爆前后软木纤维素在不同浓度的稀碱溶液中溶解度的测试分析，优化了碱溶液浓度和最佳闪爆工艺条件，得出在闪爆压力超过3.0MPa，保压时间为60s的条件下，软木纤维素可完全溶解于9％的NaOH稀碱溶液中，并且对助溶剂-硫脲对碱可溶纤维素/NaOH水溶液的增溶效果进行了研究和探索，同时也对溶解机理和闪爆机理进行了分析讨论。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。