在...保证下

According to the actual requirements of the curve realignment after the existing railway speed increasing,the traditional theory of involutes is abandoned and the coordinate measurement is used to directly realign curves.

在保证拨正前后轨道长度保持不变的前提下，利用切曲差的关系表达式，自动计算半径和缓和曲线长度，并通过算例验证算法的可行性。

A lossless incremental inverted list intersection algorithm called LEIR is proposed, which can support a larger range of ranking functions than existing incremental intersection methods. As a result, it can reduce query processing cost without compromising result quality.

提出了一种倒排列表的无损增量求交算法LEIR，它解决了现有增量求交算法不支持某些重要的结果评价函数的问题，在保证搜索精度的前提下减少了查询处理开销。

At the same time, the stripping ratio control measours of new design open-pit and producted mine are put forward. Minging more coal with little overbueden under ensureing correspond overbueden and mining coal. This is beneficial for modern surface mining.

同时提出了新设计露天矿和生产露天矿生产剥采比的控制措施，在保证剥采不失调的前提下，尽量不进行超前剥离，用最小的生产剥采比，采出最多的有用矿物，这种方法对现代露天矿具有一定的指导意义。

MSCTU scanning of the ureters can be performed at greatly reduced lose without loss the image quality.

单纯降低管电流，能在保证图像质量的前提下，有效降低辐射剂量。

According to an interview, Zoltán Dani was able to keep most of his missile sites intact and had a number of spotters spread out looking for F-117s and other NATO aircraft.

根据一次采访的说法，Zoltán Dani上校能够在保证他的绝大多数导弹完好无损的情况下，通过部署一些着弹点观察员来寻找那些F-117A和其他的北约军队的战机。

In order to improve the lateral ride quality of train without endangering safety,this paper illustrates a lateral semi-active suspension system based on the skyhook rule.A controlling model of the proposed system is then put forward based on nonlinear neural networks,with a neural identifier and a controller being also designed.

为了在保证行车安全的前提下，提高列车的横向平稳性能，提出一种基于天棚原理的列车横向半主动悬挂系统，并建立了半主动悬挂非线性神经网络控制模型，设计了神经辨识器和控制器。

In retiming registers are added at some points in a circuit and removed from others in such a way that the functional behavior of the circuit as a whole is preserved. By retimng we can optimize the speed, area or power of the circuit.

重定时在保证功能不变的前提下，通过移动时序元件的位置和改变时序元件的个数来优化同步时序电路的速度、面积和功耗。

The retarder is essential for ensuring the rheology of cement slurry under high temperatures, but the retarders currently developed in China can only be used in service under 180℃.

缓凝剂对于保证水泥浆在高温下的流变性是不可缺少的，但目前国内自主开发的高温缓凝剂使用温度均低于180 ℃。

A method dealing with the division of coverage region is discussed in this paper based on certainty coverage. Secondly, under the condition of the connectivity, dynamic programming method is used to optimize the coverage regions and their radiuses, which minimizes the sum of radiuses and reduces the cost of the coverage of the network.

然后在保证网络一定连通性的约束条件下，通过动态规划的方法优化网络覆盖区数量和覆盖半径，使网络内所有覆盖区的半径累加和最小，剔除冗余的节点降低网络的覆盖成本。

Comparison was then made between the new plan, which had EUD constraints to parotids, and the former for each individual patient.

结果 在保证靶区和其他危及器官受照剂量不变情况下，EUD优化能够使腮腺的平均剂量和V30显著降低，经T检验，P值都〈0.05。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。