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In this paper,we build symplectic structure of 2-nd order and high order singular differential operators on infinite interval, we construct a symplectic space by the maximal and minimal operator domain .

本文研究了无穷区间上二阶、高阶奇型微分算子的辛结构，利用最大与最小算子域构造了一个辛空间，用辛空间中的线性流形来刻画定义在无穷区间上二阶、高阶奇型对称微分算子的自共轭扩张问题。

Using Lagrangian submanifold in symplectic space ,we give a complete discription and classification of the self-adjoint domains of the 2-nd order and high order singular differential operators on infinite interval .

给出了与微分算子自共轭域相对应的Lagrangian子流形的描述和分类情况。

This is the opposite of the infix to postfix translation algorithm, where operators were stored on the stack.

和中缀转换后缀的算法相反，那是把操作符存储在栈里。

Unless you're a closet LISP programmer, this example should make you grateful for the ability to define infix operators

如果你不是一个封闭的LISP程序员，那么这个例子使你感激有定义中缀操作符的能力。

It only matches well-formed mathematical expressions, where the parentheses are balanced and the infix operators have two arguments each.

它只匹配正确的数学表达式，即括号是成对的，且各个中缀操作符都有两个操作数。

Expressions use the same infix operators.

表达式使用同样的插入的运算符。

This section describes the function objects in the boost :: numeric namespace, which is a sub-library that provides function objects and meta-functions corresponding to the infix operators in C++.

这一节描述位于 boost ：： numeric 名字空间的函数对象，它是一个子库，提供了与C++中缀操作符相对应的函数对象和元函数。

And then characterize the Jordan semi-triple derivable maps on the set of all linear bounded operators actingn on an infinite dimensional Hilbert space, then prove that it is additive and so is an inner derivation.

并且对作用在无限维Hilbert空间上的有界线性算子的全体上的拟三重Jordan可导映射进行了刻画，证明了它是一个内导子。

Operators such as input for the menu or function.

运营商，如输入的菜单或功能。

The vehicles of unlicensed operators could be impounded by the vehicle inspectorate under new legislation.

在新的立法之下，无肇驾驶者的交通工具会被交通检查员扣押。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。