问题的

In short, the problem is cyclical, rather than the root cause of problems.

总之，问题是周期性的，而不是问题的根源。

Cycling is part of solution to this problem, not the problem itself.

骑车是这个问题的解决方案的一部分，而不是问题本身。

A two-dimensional phase change heat transfer model was established in the polar coordinates and cylindrical coordinates by enthalpy approach.

本论文针对相变蓄热的问题，通过引用焓法建立了平面极坐标与二维柱坐标下数值求解相变传热问题的数学模型。

Simultaneously, small parameter perturbation methods are employed to transform the problem of elastic wave scattering in cylindrical shell with a cutout into the iterative addition of a series of boundary value problems and to give a semi-analytical method for solving this problem.

同时，采用摄动方法，将含孔柱壳弹性波散射问题化成一系列边值问题解的迭加，给出分析求解本问题的半解析方法。

We need to deal with the problem of resolving these data type issues.

我们需要处理的数据类型解决这些问题的问题。

The first level and the lower level both have their objective functions and constraint conditions, the objective function and constraint conditions of the first level not only have relations with the upper decision variable, but also depends on the optimal value of the lower level.

上层和下层各有目标函数和约束条件，上层问题的目标函数和约束条件，不仅与上层决策变量有关，而且还依赖于下层问题的最优解或最优值。

Some techniques of dimension reduction,including the decomposability of the problem,were studied in the literatures.

作为NP-困难问题，该问题的降维性质已被研究，其中包括它的可分解性。

This problem is known to be NP-hard. Some techniques of dimension reduction, including the decomposability of the problem, were studied in the literatures.

作为NP-困难问题，该问题的降维性质已被研究，其中包括它的可分解性。

Careful deliberation of this problem has given me several ideas as to why this should be so.

对这个问题的认真思考告诉了我这个问题出现的原因。

On the denotative problem of the system, system economist has its insufficient place about the internal system and explicit system, analysis that the organization is the problem such as the system.

在制度的外延问题上，制度经济学家关于内在制度与外在制度、组织是不是制度等问题的分析都有其不足之处。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。