冻结。使当前选择的物体的变换变成物体的零位置。你可以从子菜单中选择冻结移动，旋转，缩放或者所有。
Freeze. Makes the current transformations on the selected objects be the objects' zero position. You can select Translate, Rotate, Scale, or All from the submenu.
通过对这种变换器的工作原理分析可知，主辅开关管都可以实现零电压或零电流开关，且电压、电流应力较小。
Through the operational principle it can be verified that all the switches are capable of achieving ZVS or ZCS condition, and the voltage and current stress are relatively low.
对于离散卷积方程组，一般采用傅氏变换的方法求解，但在某些特定系数的情况下，零频率丢失。
For discrete convolution equation set, generally, people use Fourier transform method to solve. But in some positions, zero frequency will lose.
实验表明嵌入式零材编码方法可以用在非分离型二维子波变换情况，在低比特率时有很好的巅值信噪比PSNR。
The experiment shows that the embedded zerotree coding method can be used in the case of nonseparable wavelet transform and has good PSNR at low compression ratio.
电感电流断续工作的反激式变换器一次侧开关可工作于硬开关或准谐振(或谷值开关或零电压开关)模式。
The flyback converter running in discontinuous conduction mode can be operated in hard switching or quasi resonant (or valley switching, or ZVS) mode regarding the primary side switch.
与传统的数据长度补零逆傅里叶变换方法相比，在相同的采样分辨率条件下，该方法能有效减小计算量。
Compared with traditional inverse Fourier transform method, which used zeros padding method, at the same condition of sampling resolution, the method proposed could decrease the calculation load.
利用离散杜氏变换，给出线性离散系统零状态响应计算式，并可用以解线性差分方程；
With the aid of discrete Du's Transformation, we can solve the zero-state response of a discrete-time system usually described by a linear difference equation.
在伽例略变换下，巧妙利用零矢量，给出了任意正交曲线坐标系中质点速度和加速度的矩阵表式方法。
Under Galilean transformations, expressions of Veloeities and accelerations in vertical curve Coordinates are derived by the ingenious use of Zero Vector and means of matrix.
本文基于反对称矩阵的谱集，采用正交相似变换，得到一类具有零对角的符号模式矩阵具有唯一惯量的结论。
Based on the spectral set of skew-symmetric matrix, the result that a class sign pattern matrix with zero diagonal is unique inertia was proved by using orthogonal similarity transformation.
基于此函数的小波变换零交叉表示和匹配过程，得到了识别轴心轨迹的一种新方法。
Based on zero crossing representation of wavelet transform of this radial function and matching procedure, a new algorithm to identify orbits of shaft centerline is proposed.
对单个历元的双差载波相位观测方程进行零空间变换，避免了实时变化的三维位置参数求解；
It transforms the double-differential carrier observation equation using null space transformation so that it need not to resolve real-time three-dimensional position parameters.
补零傅立叶变换加速了大约3-4个百分点。我们所有的测试都使用了补零傅立叶变换，所以所有人都应该能感受到一定的速度提升。
Zero-padded FFTs are about 3-4% faster. All our tests use Zero-padded FFTs so everyone should see a modest speed boost.
在机械零部件和各类制品中，中心轴变化图形和乘幂变换图形的应用十分广泛。
Central axle distortion and power transformation graph find wide USES in design of various mechanical components and products.
该变换器中的开关管实现了在零电压下关断，而且其中两个开关管在零电流零电压下开通。
All switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching.
提出一种统一定点坐标变换和基于该变换的有源电力滤波器零稳态误差电流控制方法。
Unified fixed point coordinate transformation (UFP-CT), and a novel zero steady-state error current control method for active power filter (APF) based on UFP-CT were proposed.
双空间矢量调制两级协调控制能实现整流级零电流换流，极大地减少了开关损耗，提高了变换器的效率。
Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.
建筑底层拥有相同的灵活性，他们可以在住宅与零售店间变换。
The ground floors share that same flexibility as they can shift between housing and retail functions.
分析了加工过程对零件特征的需求；探讨了特征工程变换的基本原理。
The requirements of manufacturing process for features in the part are analysed; the basic principles of engineering conversion for features are studied.
联合变换相关器的零级衍射光斑会影响相关峰探测。
Zero-order diffraction light spot can influence the detection of the correlation peak in joint transform correlator.
定义了变换近环，然后证明了任意一个有单位元的近环与它的变换近环同构；任意一个无零因子近环与它的变换近环同。
The commutation near ring defined, it is proved that the near ring of an arbitrary near ring with its unit dimension is isomorphous with its commutation near ring.
提出了一种新型的零电压开关全桥三电平直流变换器。
This paper presents a novel zero voltage switching full bridge three level converter.
结果表明，采用一步法合成二甲醚如果存在水汽变换反应，CO2的转化率为负值，如果催化剂可以控制不发生水汽变换反应，CO2的转化率为零。
The results indicated that the conversion of CO2 is negative if the watergas shift reaction exist and it will be zero if the catalyst can control no watergas shift reaction to take place.
本文提出了一种新型的零电压零电流开关pwm推挽三电平直流变换器，其中开关管的电压应力为输入电压。
This paper presents a novel zero voltage and zero current switching (ZCS) PWM push pull three level converter in which the voltage stress of switches is input voltage.
介绍了小波变换的定义及小波变换的性质，特别介绍了零通小波的理论及其如何在地震勘探资料处理中的应用。
The paper introduces the definition of wavelet transform and its properties. Especially the philosophy for zero-crossing wavelet and how it can be used in seismic prospecting are presented.
分析了正常的人脉搏信号的小波域特征，发现脉搏信号的时域特点严格对应于其小波变换的过零点。
The zero-crossing of the wavelet transform of the normal person pulse-wave is found out as a fact that its the wavelet transform coefficients correspond strictly to its time field characteristic.
不需要任何辅助开关或无源谐振网络，变换器就可在双向变换工作中实现零电压开关。
Without the need of any auxiliary switches or complex passive resonant network, the converter can achieve ZVS in both forward and backward modes.
推导出共轭对称序列的快速付里叶变换FFT具有相位为零的特性；
It is derived that the phase of the FFT for a conjugate-symmetric sequence is zero.
提出了一种新型的全桥移相零电压零电流变换器拓扑结构。
A novel full bridge (FB)-phase shift (PS)-zero voltage zero current switching (ZVZCS) converter is proposed.
提出一种具有零电流关断(ZCS)的反激式单级功率因数校正(PFC)变换器。
A flyback converter with zero current switching (ZCS) resonant and power factor correct (PFC) is proposed.
根据整数DCT变换和量化的特性，通过提前判定全零系数块来终止没有意义的运动搜索过程。
According to the characteristics of integer discrete cosine transformation(DCT) and quantization, the coefficient-all-zero block was determined in advance to terminate meaningless search.
应用推荐