查询词典 block

In the case of no CSI at the receiver, combining Cayley transform with the DBOAST block code, a new differential unitary space-time block code is given.

将网格编码调制与线状代数空时分组码结合，提出了网格编码调制空时分组码。

The cephalic levelof sensory block and the degree of motor block increased withlarger doses of ropivacaine.

且随着剂量的增加向头测的感觉和运动的阻滞平面逐渐上升。

Cinder block:usually hollow building block made with concrete and coal cinder s.

炉渣砖：一种通常空心的用混凝土和灰渣做成的建筑用砖。

Cinder block:usually hollow building block made with concrete and coal cinders.

炉渣砖：一种通常空心的用混凝土和灰渣做成的建筑用砖。

However Block-FFT can only be used with approximating the system matrix as block circulant.

然而，现有的方法是把系统矩阵做一个块循环近似，然后才能作块三角分解。

With cyclic prefix, the channel matrix exhibits block circulant property which is exploited to blindly identify periodically modulated block transmission system in an existing method.

一种针对具有循环前缀和周期调制的块传输系统的盲辨识方法，利用了信道矩阵的块循环特性来求解信道系数。

This artic le researches a fast algorithm which extends the system matrix of JD into b lock circulant ma-trix,then uses block Fourier transform and block circulant matrix to perform matrix inversion and operation s.

提出一种快速算法，将联合检测的系统矩阵扩展成块循环矩阵，利用块FFT和块循环矩阵进行快速矩阵求逆和简化矩阵运算。

ZL03 2 354312.The innovations include: automatic self-closing and reliably sealed valve structure: the design of duplex valve clack with pilot valve to tackle the problem of reverse seal structured valve being difficult to be opened; an automatic drain control device to automatically drain the remaining water from the hydrant; protective plate provided between the hydrant body and the valve block to serve as a connection between the hydrant body and the valve block, which is the first one to be damaged when the ground hydrant is clashed, and prevent pulling-off of the whole above-ground part of the fire hydrant, so as to properly protect the main parts from any damage. The self-closing and reliably sealed valve now prevents drain of water, and only the damaged protective plate is needed to be replaced before immediate re-operation. Thus the repair work after clashing is very easy and simple.

其创新点为：具有能自动关闭并可靠密封的阀门结构：采用有先导阀复式结构阀瓣设计，解决反向密封结构阀门开启沉重费力的难题；设计自控排水装置，能自动排除栓体内余水；在栓体和阀体之间设计撞裂板，它既起到连接栓体和阀体的中介作用，又可在地上消火栓被撞击时率先破裂毁坏，并使露出地面的栓体不见整体脱落，有效保护各主体部件的完好无损，而此时阀门的自闭式结构可靠密封阀门阻止水源外泄，修复时只需更换损坏的撞裂板即可立即复位投入使用，使被撞后的修复工作变得十分轻松简便。

Check the performance just uncomment the old code block and comment the new code block.

检查性能刚刚取消对旧代码块和评论新的代码块。

A typical use of this compound statement opens a file or other external resource at the very start of the 'try' block, then performs several actions that may or may not succeed in the rest of the block; the 'finally' is responsible for making sure the file gets closed, whether or not all the actions on it prove possible.

一个典型的利用这种化合物声明打开一个文件或其他外部资源，在起步时的'try'块，然后执行一些行动，可能会或不会成功，其余的区块；的'finally'负责决策确保文件被关闭，而不论是否所有的行动，这证明可能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。