If the two level curves are tangent to each other that means they have the same tangent line. That means that the normal vectors should be parallel. Let me maybe draw a picture here.
如果两个等高线相切，说明它们的切线相同，也就是说他们的法向量应该平行，我再在这里画个图。
Burning boiler control system is designed in two level control structure: monitoring level and loop level.
锅炉燃烧控制系统设计为两层控制结构：监督级和回路级。
Due to its two level structure, the system detecting speed is accelerated and its recognition rate is also improved.
该系统是由两级分类器组成，这样既加快了系统检测速度，又保证了其检测精度。
In this paper the model of two level atomic momentum spread in amplitude modulated standing light wave was investigated.
分析了二能级原子在振幅调制驻波场中动量扩散模型。
Result: The assessment system consists of two level targets and weighing targets, evaluative standards methods and grades.
结果：建立的评价体系由二级指标、指标权重、评估标准与方法、评估得分与等级等构成。
Objectives: To explore the applicability of two level variance component model in research on variability between interviewers.
前言：目的：探讨两水平方差成份模型在评价调查者间变异的应用价值。
The paper summarizes the concept of management support which covers two level meanings: management involvement and management participation.
本文分析了管理支持的内涵，指出其包含管理介入和管理参与两层含义。
The atomic dipole amplitude squared squeezing in the interaction system of the two identical two level atoms with single mode vacuum field is studied.
研究了两个全同的二能级原子与单模真空辐射场相互作用系统中原子的偶极振幅平方压缩效应。
The motion equation satisfied by an induced polarization of a two level atom interacting with laser pulse is derived by using a nonperturbation method.
通过非扰动方法导出了与线偏振激光脉冲相互作用的二能级原子的诱导极化所满足的运动方程。
Considering the characteristics of operation style in district power network, the concepts of two level operation style pattern and equivalence power source are led to setting calculation.
根据地区电网运行方式设定特点，在整定计算中引入了双层运行方式和归算电源的概念。
That is because it does not include two Level 2 process areas, which cover essential best practices for project implementation.
这是由于它没有包括2级的两个过程领域，而它们包含了项目实现中基本的最佳实践。
In this paper, we investigate the entanglement dynamics of two entangled two-level atoms interacting with a single_mode field in a dissipative cavity.
研究了能量损耗腔中，两纠缠二能级原子与单模辐射场相互作用过程中原子的纠缠动力学。
Within the measurement infrastructure, counters are structured using a two-level hierarchy.
在测量基础架构中，用两级层次对计数器进行结构化。
To schedule processes, OpenVZ includes a two-level CPU scheduler.
为了对进程进行调度，OpenVZ还包括了两级CPU调度器。
In the example of the nested, two-level embedding approach, you can embed the top-down approach within the bottom-up approach (see Figure 4) or the other way around.
在这个嵌套、两级嵌入式方法示例中，您可以在自底向上方法中嵌入自顶向下方法(请参见图4)，或者反过来。
Both interactions of a two-level atom with a vacuum field and a excited atom with a coherent field, as examples, are discussed in detail.
作为例子，详细讨论了二能级原子与真空场的相互作用以及处于激发态的原子与相干场的相互作用。
Based on the analysis of the two-level algorithm structure, the paper has proved that the model is a recursive simultaneous model, and the problem of model parameter recognition is resolved.
在分析两水平算法结构的基础上，论证模型为一递推型联立模型，解决了模型参数的识别问题。
Then a VLIW optimizing compiler adopting two-level software pipelining is described.
然后叙述采用两级软件流水的VLIW优化编译器；
In this system, using two-level association key management technology realizes key management of storage grouping algorithm.
在数字防伪系统中，采用“二级关联密钥管理技术”来实现存储分组算法的密钥管理。
A two-level approaching method for structural optimal design is proposed.
本文对结构优化设计提出了一种二级逼近方法。
This paper presents a globally optimal composite filtering solution for a two-level hybrid multisensor system.
本文提出适合于两级混合式多传感器系统的全局最优状态估计解。
The problem is decomposed into a two-level optimization problem by constraints substitution introduction of functions of batch sizes and relaxation of material balance constraints.
通过约束变换、引入操作批量的函数和松弛物料存贮能力约束，将调度问题分解为一个两层次的优化问题。
Considering the effect of distribution of amplitude vs time t, we reconsider the problem of transition of a two-level atoms which interacts with optic field.
考虑到光场的振幅随时间分布的影响时，我们重新研究了光场与二能级原子相互作用的跃迁几率问题。
In order to improve the signal noise ratio and the precision of the analysis, a "two-level sifting" is processed in recording and analyzing VLP by HOLTER.
为了提高晚电位分析结果的精确度，提高信号噪声比，在HOLTER记录和分析时，采用了“二级筛选”的设计方法。
Methods Fitting two-level random coefficient model and sequence effect to estimate the treatment effect and its variation between individuals.
方法通过两水平随机系数模型以及顺序效应的拟合，估计处理效应的大小及其在个体间的变异。
On the basis of light interaction with two-level atomic system, we derive the interaction solitary wave equations, its solution and two necessary conditions for the existence of the solution.
在光与二能级原子系统相互作用的基础上，我们导出相互作用孤立波方程组及其精确解，以及存在解的两个必要条件。
This paper reviews study work on two - level distribution system by above mentioned five aspects, and points out the future research direction of that.
本文从上述的五个方面对两级分销系统的研究作了回顾，并指出了两级分销系统未来的研究方向。
Based on general situation decision theory and two - level system decision theory, this paper puts forward a new method and creates a new model of complex system multilevel situation decision.
本文基于单层局势决策和二层系统决策理论提出了用于复杂系统的一种多层局势决策新方法，并建立了相应的数学模型。
You might also be able to use approaches like a two-level cache to improve both the remote cache hit rate and the retrieval rate.
您可能还能够使用二级缓存等方法同时提高远缓存访问率和检索率。
You might also be able to use approaches like a two-level cache to improve both the remote cache hit rate and the retrieval rate.
您可能还能够使用二级缓存等方法同时提高远缓存访问率和检索率。
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