可换位的

Let A" denote the commutant of a bounded linear operator S on H and R denote the collection of all operators in A" which are compact and upper triangular operators with diagonal sequence being zeros. In this paper, we show that if A"= CI + R, the K_0-group of A" is isomorphic to the integer group.

本文指出若H上的有界线性算子S的换位代数A′=CI+R，其中C是复数域，I是H上的单位算子，R是所有与S可交换的对角线为0的紧上三角有界线性算子的集合，则K_0A′

In chapter 2, a new concept- property T〓 is introduced, it is proved that nest subalgebras of von Neumann algebras, finite width CSL and atomic CSL subalgebras of von Neumann algebras have property T〓. Some tensor product formulae of nest subalgebras and CSL subalgebras in von Neumann algebras are obtained. Tensor products of W〓-dynamical systems are studied. Finally, the essential commutant of tensor product of operator algebras is discussed.

第二章我们引入了性质T〓这一新概念，并证明了任一vonNeumann中的任何套子代数，有限宽度的可交换格子代数和原子可交换格子代数都具有性质T〓；得到了von Neumann代数中套子代数和可交换格子代数的张量积公式；研究了W*-动力系统的张量积问题；最后讨论了张量积代数的本性换位。

Overall design of this machine is accomplished by specialized mechanical designer, offering a streamline appearance and a flexible platform bracket with free-moving wheels. When user wants to change its position, he/she only needs to open the wheel lock and gently push the cutting plotter to the desired

本机的整体设计由专业的机械设计师设计，流线型的外观、方便灵活的机台支架装配了可自由移动的滑轮，客户在使用过程中如想换位，只要打开轮锁轻轻推动切割机就可摆到自己想要更换的位置，方便实用。

In particular, they tracked the positions of transposable elements.

特别是他们跟踪了可换位元素的位置变化。

The transpostional consideration between cadres and ordinary people will help their understanding. The transpositional consideration between cadres will help the cooperation, between persons will help solve contradichtions and build a harmonious circumstance, between different fields will result in a harmonious and sustainable development.

干部与群众之间的换位思考，有利于密切干群关系；干部与干部之间换位思考，有利于部门之间的密切配合；人与人之间的换位思考，有利于化解矛盾、创造和谐的氛围；行业之间的换位思考，有利于行业之间的和谐和可持续发展。

The lower keyboard could be layered with the upper keyboard, and both keyboards also could be detuned and transposed against each other for additional sound variations.

下键盘，可分层与键盘上的，双方在键盘上也可以失谐，并换位针对对方额外无害的变异。

The proposed method can work well under asymmetry element parmeters,and it is not necessary to consider the phase shift of ideal transformer or using multi-port net theory,which make the proposed method more applicable and simplify the calculat...

相分量算法不要求电力系统元件参数对称或循环对称、不利用多端口网络理论及理想变压器的移相，拓宽了故障计算的适用范围、简化了编程难度，并可推广到处理诸如线路换位不完全的参数不对称等其他电网不对称计算。

The proposed method can work well under asymmetry element parmeters, and it is not necessary to consider the phase shift of ideal transformer or using multi-port net theory, which make the proposed method more applicable and simplify the calculation program. The method is also capable of handling various unsymmetrical calcuations, such as the fault calcuation for power system without complete transposition.

相分量算法不要求电力系统元件参数对称或循环对称、不利用多端口网络理论及理想变压器的移相，拓宽了故障计算的适用范围、简化了编程难度，并可推广到处理诸如线路换位不完全的参数不对称等其他电网不对称计算。

Music from the years of study and practice that, by using "Transposition thought" teaching method, which can effectively mobilize students to learn vocal enthusiasm.

由多年音乐学习实践中发现，运用&换位思考&的方式教学，可有效地调动学生学习声乐的热情。

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。