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Solid acid catalysts have been found to be useful catalyst in a variety of organic reactions. They have many advantages, such as non-toxic, inodorous, non-volatile; non-corrosive, non-pollution, mild reaction conditions, high yields and reactivity, excellent stability and simple work-up procedure, and these are what liquid catalysts cant replace.

固体酸催化剂在有机合成反应中应用广泛，这类催化剂无毒无味，不挥发，不污染环境，不腐蚀设备，容易回收，可重复使用，所催化的反应条件温和，产率和选择性高，后处理简便，且具有独特的催化性能，这些是液体催化剂所不能代替的。

It's whole content is mainly about the following seven question:the definition of "fair value",the entry price of asset of swap-in in non-monetary transaction,the formula of judge in non-monetary transaction,the question of whether the exchange of the labour service could be listed in the range of non-monetary transaction,the standard to judge the asset for sale and not for sale,the rationality of non-monetary transaction relate to multinomial asset which is regarded as the same kind.

全篇主要讨论了"公允价值"的定义，非货币性交易中换入资产的入帐价值，非货币性交易判别公式，劳务交换是否可以纳入非货币性交易范畴，待售资产与非待售资产的判定，未实现最终交换目的的不同类交换视为同类交换是否合理，涉及多项资产的非货币性交易均视为同类交换其合理性等七个问题

Secondly, three kinds of mathematics model of optical vortex beams were introduced here. Then the propagation dynamics of optical vortex beams through the non-axis symmetry system is studied, this chapter includes the introduction of the symmetry vortex beam and the non- symmetry vortex beam, the deduction of the Collins diffract integral formula for the non-axis symmetry system, and the transformation of the vortex beam passing through the non-axis symmetry system has been described by using the numerical simulation. Then the general calculation for the orbit momentum of vortex beams, the matrix form for the orbit momentum of vortex beams, and the photon method to describe the orbit momentum of vortex beams are also introduced here. Finally, the interference about optical vortex beams was studied.

本文对涡旋光束进行了较为全面的介绍和研究，主要内容包括：（1）光学涡旋光束的基本理论，主要是介绍了单个光学涡旋光束在柱坐标中的一些表征，涡旋光束的奇异相位和光学涡旋的相位结构；（2）光学涡旋光束的三种数学模型；（3）光学涡旋光束在非轴对称光学系统中的传播动力学，其中介绍了对称涡旋光束与非对称涡旋光束，推导了非轴对称光学系统的 Collins 衍射积分公式，并利用计算机模拟图描述了对称涡旋光束经过非轴对称光学系统后涡旋形态的改变；（4）涡旋光束轨道角动量的一般计算，涡旋光束轨道角动量的矩阵形式，光子法描述涡旋的轨道角动量；（5）涡旋光束的干涉。

The Non-profit organization namely take does not seek to make a profit as the goal each kind of organizations and agencies abbreviation, may divide into according to its rentability take the Medical establishment, the institutions of higher learning and so on as the typical representative's rentability Non-profit organization, as well as take each kind of welfare activity as representative's non-rentability Non-profit organization.

非营利组织即不以营利为目的的各种组织机构的简称，按其收益性可以分为以医疗机构、高等院校等为典型代表的收益性非营利组织，以及以各种福利机构为代表的非收益性非营利组织。

The results show that:(1) In the low income college students to solve the problem of the way the scores were significantly lower than those of non- low income students ,and in the self-condemned was significantly higher than that of the non-low income students; low income college student s in the SCL-90 body, forced, interpersonal sensitivity, depression, anxiety, hostility, paranoia, psychosis, and so on eight the factor scores were significantly higher than the non- low income college students, the low income college students in general mental health level was significantly lower than the non-low income students.

研究结果表明：(1)贫困大学生在应对方式的解决问题因子上得分显著低于非贫困大学生，在自责因子上显著高于非贫困大学生；贫困大学生在SCL-90的躯体化、强迫、人际关系敏感度、抑郁、焦虑、敌对、偏执、精神病性等8个因子上及总分上得分均显著高于非贫困大学，总体上贫困大学生的心理健康水平显著低于非贫困大学生。

In the experiment, the way the fruit of the bee population is not necessarily channel the fly from the shell, also punched out the wall from the fruit fly population of non-shell access out of flying, of which the two plots in the 16 fruits collected in 3 strains of non-bud mouth phenomenon, discussed the shell from which I access the meaning of existence, there's reason for non-bud mouth channel, and observation of non-pollinating wasp Sycophila.sp.

在实验中果实的出蜂的途径不一定从苞口通道出飞，也有从果壁上打洞出飞的非苞口通道出飞，其中在2个样地采集的果实中16株中有3株有非苞口的现象，从中讨论了苞口通道存在的意义，出现非苞口通道的原因，以及观察到非传粉小蜂Sycophila.sp。

Stainless steel concave end knurling;DIN915 Stainless steel cylindrical end; DIN914 Stainless steel pointed end; DIN916 Stainless steel concave end; DIN913 Stainless steel flat end; DIN551 Stainless steel slotted point; DIN906 Stainless steel oil plug,semi-circular; Stainless steel two-end hexagonal non-standard; Brass internal hexagonal,cross,non-standard; Brass wobbler,nickel-plated; Stainless steel ,alloy steel heat-resistant; Alloy steel zinc-plated; Alloy steel semi-circular; DIN915 Alloy steel cylindrical end, Philips screw non-standard; DIN916 Alloy steel concave end;DIN914 Alloy steel pointed end;DIN906 Alloy steel oil plug; Corrugated ball; Two-end internal hexagonal non-standard; Textile machine screw-nail; Tool-post screw-nail

不锈钢凹端滚花；DIN915 不锈钢柱端；DIN914 不锈钢尖端；DIN916 不锈钢凹端；DIN913 不锈钢平端；DIN551 不锈钢一字槽；DIN906 不锈钢油塞、半圆；不锈钢2头内六角非标；黄铜内六角、十字槽、非标；黄铜梅花头、镀镍；不锈钢、合金钢耐落；合金钢镀锌；合金刚半圆；DIN915 合金钢柱端、十字槽、非标；DIN916 合金钢凹端；DIN914 合金钢尖端；DIN906 合金钢油塞；波珠；2头内六角非标；纺织机螺钉；刀架螺钉。

E si capisce già dal suono delle campane e le messe in duomovisione che ha poco rispetto delle persone, il duomo non è suo, non può decidere cosa deve ascoltare la gente, faccia la sua messa nella sua chiesa e non rompa i maroni alla gente che non è interessata.

这已经是理解的铃铛声，并投入了小duomovisione尊重人，穹顶是不是它的一部分，不能决定什么，听取群众，把他的脸在他的教会，而不是打破马罗尼人谁也不会受到影响。

The General Agent fails to perform or observe any of its duties or obligations under this Agreement and such non-performance or non-fulfillment is not rectified within a period of thirty (30) days after receipt by the Generall Agent of the notice from the Principal, notifying the General Agent of such non-performance or non-fulfillment.

总代理没有能够执行或遵守在此协议下的任何其它职责或责任，并且此不执行或不作为在收到委托方给总代理的通知后30天内依然没有得到纠正，来通知总代理此不执行或不作为。

The research pointed out that at the same time of establishing the machinism of non-tolling road asset value recovery, we should also manage non-tolling road asset fully through establishing Financial Management System, improving road maintaining system, defining the main management body of non-tolling road, improving the reporting system of non-tolling road.

研究认为，在建立非收费公路资产价值补偿机制的同时，还应从建立健全财务管理制度、改进养护机制、明确非收费公路资产管理主体、完善非收费公路资产报告制度等方面对非收费公路资产进行全方位的管理。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。