查询词典 bases

Flame retardants may interrupt or change the decomposition process in several ways:(1)they may melt at relatively low temperatures and resolidify in the form of a foam, which serves as a barrier to heat transfer from the flame to the substrate;(2) they may be converted upon heating into acids or bases, which catalyze the decomposition of the substrate at lower temperatures than are required for the formation of volatile combustibles;(3 ) they may decompose orsublime upon heating to release large amounts of nonflammable vapors which exclude oxygen from the flame; or (4) they may react with chemicakl species within the flame to stop the combustion reaction.

阻燃剂可以从几个方面干涉或改变织物的分解过程：（1）阻燃剂在相对较低的温度时会熔化，然后重新固化成泡沫状，这样就形成了一个屏障，阻止了从火焰向织物的热传递。（2）阻燃剂受热时会分解成酸或碱，这些酸或碱在低于可生成挥发性可燃物的温度下可以催化织物的分解。（3）阻燃剂在受热时会分解或升华，同时释放出大量不可燃气体，这就阻止了氧气对火焰的供应。（4）阻燃剂可以与火焰中的化学物质起反应，使燃烧反应终止。

Now, the OA system base on the c/s model cant well meet the request of revenued office which bases on the network.

目前，传统的客户服务器模型设计的办公自动化系统已不能很好地满足税务部门网络办公的要求。

The article bases on the result of elastic-optic experiment and uses the energy method, roll theory and thick tube theory to calculate the contact pressure in ringent and close section.

根据全息光弹实验结果得出的轧辊接触压力的分布规律，进而利用能量方法、轧压理论及厚壁筒理论对开口孔型、闭口孔型的轧辊接触压力进行计算。

A series of new metal coordination compounds of schiff bases derived from salicylaldehyde, 2, 4 - dihy droxybenzaldehyde, glycine and L - alanine has been synthesized.

Schiff碱与过渡金属离子所形成的配合物的合成、性能及应用研究，十多年来一直是引人注目的研究课题。

Our main research work has been focused on the synthesis, characterization of substituted salicylaldehyde Schiff bases and their complexes, which are not reported in articles now. There are twenty-one new compounds in total.

本论文研究了目前未见国内外文献报道的、水杨醛中苯环上含有取代基的水杨醛缩脱氢枞胺Schiff碱及其金属配合物的合成与表征，共计获得了21个新的化合物，从而为后期生物活性的测定及不对称催化提供研究基础和实验样品。

Synthesis and characterization of tridentate chiral ligands, a series of Schiff-bases which are synthesized by salicylaldehyde, 2-pyridinecarboxaldehyde and amino alcohols derived from the amino acids without coordination group on side chain.

由侧链不带配位基团的天然氨基酸合成的氨基醇与水杨醛及2-吡啶醛缩合的Schiff-Base等三齿配体的合成与结构分析。

Synthesis and characterization of two Schiff bases based on salicylaldehyde and aminebenoic were described. The structures of new compounds were characterized by JR, 1HNMR and elementary analysis.

制备了水杨醛缩邻氨基苯甲酸Schiff碱，利用红外、核磁(1H NMR)光谱和元素分析仪对化合物结构进行了表征。

Oslash ; most autobots abandon cybertron for either earth or bases on aeon and secundus

多数汽车人离开塞伯坦，前往地球，或往万年星与铁甲星。

Ground motion noises of station bases of 21 ones of 23 Xinjiang digital seismic station are in the range of 1 to 10 Hz, which are qualified to technical regulations of Chinese digital seismographic station network.

新疆23个数字地震台中的21个台的台基地动噪声在1~20比内符合中国数字测震台网技术规程的要求，而另外2个台，即二宫和石河子数字地震台没有达到规定指标。

Using multidiscipline approach to combine earthquakes with the corresponding seismotectonic belt, this paper discusses the recurrence behavior of continental strong earthquakes in areas with more than one potential seismic zone or fault zone, and proposes a Quasi-periodically Clustering Recurrence Model on the bases of statistics, test and analysis.

在过去的几十年中，从确定性预测到概率定量评估，活动断裂地震危险性研究取得了长足的进展，但在地震复发模式、断裂之间的相互作用及其对活动断裂地震危险性的影响、模型和参数的不确定性分析以及活动断裂定量研究资料的应用等方面还存在许多亟待完善和解决的问题，这些课题也是今后一个时期内活动断裂地震危险性研究的主要热点和发展方向。

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。