查询词典 be certain of

The invention adopts surfactant of amphipathic block copolymer as structure-directing agent to be dissolved in alcohol solvent, and niobium sources and aqueous solution of inorganic salts are added as structural promoter to be stirred for a certain period of time in the room temperature to form colloid; the colloid is then heated and volatilized under low temperature to remove the solvent and dried and calcined under high temperature to obtain the mesoporous columbium oxide.

本发明将双亲性嵌段高分子表面活性剂作为结构导向剂溶解于醇类溶剂中，加入铌源和无机盐类水溶液作为结构促进剂，在室温下搅拌一段时间后形成胶体，低温下加热挥发除去溶剂，经干燥、高温焙烧而成。

Are equally worthwhile in the sense that there can be no commensurable, rational criteria to discriminate among them, I also advance some positive arguments to the effect that certain universal justification may be found for a type of liberalism mainly based on negative freedom.

我也将提出一些积极的论点，大意是能够为主要奠基于消极自由上的一种自由主义找到一种普遍的正当性。

Wbe a complete convex metric space ,T be a beneral quasi-contractive mapping satisfying certain condition and {x n}be the Ishikawa type iterative sequence with errors of T.

设是完备的凸度量空间，T ：E→E是广义拟—压缩映象，{xn}为T的带误差项的Ishikawa迭代序列。

A secure system consists of many sub——systems, even though every one of those sub-systems satisfies a certain security property, the composed system may not be secure, i.e. the composition maybe not satisfy the security property. It does mean that the security property should be composable.

安全系统是由许多子系统组成，每一子系统都必须满足一定的安全性质，但这不能保证由这些子系统组合而成的系统也是安全的，即组合的系统不一定也满足给定的安全性质，所以要求系统的安全性质满足可结合性。

By using informational and personal resources , workflow management deals with all steps of a business process concertedly, by which the business process will be implemented step by step according to certain rules and be executed automatically.

工作流管理主要是通过调用有关的信息资源和人力资源来协调业务过程中的各个环节，使之按照一定的顺序依次进行，从而实现业务过程的自动化。

Edition advocate, of the administrator it is certain to be in charge of can be in admittedly clear on degree the rubbish on the network, but can they discriminate fact and crammer?

不大可能。版主、管理员的负责固然可以在一定程度上清理网络上的垃圾，但他们能够甄别事实和谎言吗？

There is a concealed, half conscious battle on the question of legislative policy, and if any one thinks that it can be settled deductively, or once for all, I only can say that I think he is theoretically wrong, and that I am certain that his conclusion will not be accepted in practice semper ubique et ab omnibus.

关于立法政策的问题存在一个隐蔽的意识朦胧的战斗，且如果任何人认为这种战斗能获得演绎性或一劳永逸的解决，我只能说我认为他在理论上是错误的，并且我肯定他的结论不会被实践所接受。

Apparently, the approximate controllability doesn"t hold for generally linear parabolic equations with bounded control. It doesn"t hold for the semilinear heat equations presented there,either. Then, it is proved by analyzing its" solutions that no matter how long the time T is , there are targets that can"t be approximated by the solution of heat equation with Dirichlet boundary conditions;If a given target satisying certain conditions can be reached by the solution of heat equation .

本文先针对两个具体的半线性热方程系统证明了控制加约束后系统是不能控的；然后通过分析方程的解，对带位势及Dirichlet边界条件的热方程系统，无论时间多大，都存在不能控的目标；文中还证明了满足一定条件的目标可达。

But there are certain other sayings of the Holy Prophet, which show that although the good done by a disbeliever cannot save him from the fire of Hell, yet in Hell he will not be subjected to the severe punishment which will be the lot of the wicked, sinful and villainous disbelievers, e.g.

但使者也说过，非信士所作的善行虽然不能把他救出火狱，然而他在火狱中的将不会面临穷凶极恶的非信士所遭受的严厉惩罚，如根据圣训，考虑到Hatim Ta'I的慷慨，将在火狱中面临一个较轻的惩罚(Ruh al-Ma 'ani)。

Moreover regardless of adopts what kind of existence the existent solution, digit imaging system's latitude must be a certain that cannot be intervened artificially value on the physical level after leaving factory. Some digital cameras are known as alterable latitude, but they change camera's latitude by past treatment through DSP. So users cannot change latitude, light-shade transition or color transition as film camera just by replacing film's type. Now the civil camera's minimum ISO is 50. This value is discommodity for users to photo by the long exposure or other similar mode.

另外无论采取何种目前存在的解决方案，由于目前具有动态范围可调功能的数字照相机都是针对CCD所采集的数据进行再处理，因此，数字成像系统物理层上的宽容度动态范围始终是一个人工不可干预的固定值，这样的话，用户无法像胶片一样仅仅改变胶片型号便能实现宽容度和色彩过渡的改变以方便画面的创意，而且目前民用照相机感光度的最低值一般为ISO50，这个值在进行类似长曝光等方式的创意摄影时仍存在较大的不便之处。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。