查询词典 qr.

Users peel off a sticker and scan a QR code on it.

用户剥离贴纸并对QR码进行扫描。

The main tasks of this design are to acquire and identify image of QR Code in high speed, based on the research on international symbology spe...

本设计的主要任务是在研究二维条码的码制标准的基础上，实现对二维条码QR码的高速采集与识别。

In this article, several common matrix decomposition theory and its applications was put forward, such as triangular decomposition, QR decomposition, the full rank decomposition, SVD and so on.

本文给出了几种较常见的矩阵分解理论及其应用。如三角分解，QR分解，满秩分解，奇异值分解等。

In many practice problems such as to know the resonnance frequency of a structure and to know the critical value for the stability of a dynamical system,often need to compute the eigenvalues of a symmetric matrix. The chief method to compute the eigenvalues of a symmetric matrix is first to transformate the matrix to a symmetric tridiagonal matrix similarly and orthogonally, then to use the QR method with shift to the symmetric tridiagonal matrix.

很多实际问题，如求结构振动的固有频率，动力系统稳定性的临界值等常常归结为计算对称矩阵的特征值，而首选的计算方法是先把该矩阵正交相似变换成一个对称三对角矩阵，再对这个对称三对角矩阵用带位移的QR方法。1968年J.H。

The midpoint of PR is on the x-axis and the midpoint of QR is on the y

PR 的中点在 x 轴上而 QR 的中点则在 y 轴上。

Because coefficient matrix of power system is anisomerous real number matrix,adopting QR Arithmetric for a small-scale or middle-scale power system is a great feature of my project.

由于电力系统的系数矩阵为不对称实矩阵，对中小规模的电力系统采用求特征值和特征向量比较好的 QR 算法是本方案的一大特点。

Shirt shirts each come with a scannable little QR code in the corner.

–恤衫每件角落都有一个可扫描的QR代码，在一个角落。

Mechanism by which XH might induce QR could be through interaction with Keap1, which sequesters Nrf2 in the cytoplasm, so that it cannot activate the ARE.

黄腐酚诱导QR反应的机制可通过Keap1的相互作用，隔离细胞浆中的Nrf2，因此，它不能启动ARE。

One mechanism by which XH might induce QR could be through interaction with Keap1, which sequesters Nrf2 in the cytoplasm, so that it cannot activate the ARE.

黄腐酚诱导QR反应的机制可通过Keap1的相互作用，隔离细胞浆中的Nrf2，因此，它不能启动ARE。

The results show that single structure parameters (width and depth of flow path/passage, and height, and angle of dentations) are local and difficult to represent the anti-clogging ability of emitters. Characteristic structure parameters(minimum size of cross section, hydraulic radius and dentitions spacing) can represent the anti-clogging ability of emitters in a sense. There are anti-clogging critical values under the test. Rated flow Qr and the ratio of diameter of labyrinth passage to diameter of particle η are well cor related to the anti-clogging ability and have anti-clogging critical values too.

结果表明：用单一结构参数(流道宽度 W 、流道深度 D 、齿高度 h 和齿角度θ)表征其抗堵塞性能存在局限性；结构特征参数断面最小尺寸 min(D，W、水力半径 R 和齿间距 l 能较好反映滴头流道横、纵断面的结构特征，在不同程度上表征了流道的抗堵塞性能，且在试验条件下各自均存在抗堵塞临界值；滴头额定流量 Qr 和迷宫滴头径粒比η与抗堵塞性能相关性较好，且存在抗堵塞临界值。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。