查询词典 diagonal

To minimize harmful diffraction effects, the secondary, or diagonal, mirror is generally only large enough to let the central portion of the focal plane receive light from the whole primary mirror.

为减小不利的衍射效应，副镜，或平面镜的大小只是刚够把主镜在焦平面的像反射就行了。

By using the property of the secondary quasi diagonal matrix s index,a computational method of the Drazin inverse of even order anti centrosymmetric matrices is given.

利用次准对角阵指标的性质，给出了偶数阶反中心对称矩阵Drazin逆的一种计算方法。

The algorithms estimate the DOA of the broadband distributed source fron the secondary diagonal elements of the covariance matrices generated from every frequency domain of the received broadband signal s, thus avoiding unwrapping of phases.

该类算法首先将阵列接收的宽带信号变换到频率域，然后对于每个频率形成阵列接收信号协方差阵，最后由该协方差阵的次对角线元素估计宽带分布源的到达角，其主要特点是避免了相位展开。

A diagonal pull tipping-bucket self-recording flow meter based on volumetric method is introduced herein; which consists of tipping-bucket flow sensor, mechanical pulse generator and counter; of which the innovation is that the engine counter used commonly in the weaving industry is successfully applied in the flow measuring through the design of a new mechanical pulse generator .

介绍了一种基于翻斗法量水的自记流量测定仪，该测定仪构成主要包括翻斗式流量传感器、机械脉冲发生器和计数器3部分，其创新点在于，通过自行设计的新型机械脉冲发生装置，将在纺织行业普遍应用的机械式累计数器成功的应用于流量的测定中，该测定仪最大的特点是无需任何动力，抗干扰能力强，特别适合野外工作

This paper mainly deals with invariant subspaces and cyclic vectors of certain diagonal operators on a separable Hilbert space. In this case, a complete characterization is given.

考虑一般对角算子的不变子空间是非常困难的，本文主要研究Hilbert空间上一类对角算子的不变子空间和循环向量，给出了这类算子不变子空间和循环向量的完整刻画。

The service is a diagonal shot, hit into whichever service court is diagonally opposite.

羽毛球的发球是发对角线球。发球方将球发到自己斜对的对方发球区内。

This paper introduces the new way of three kinds hatching design in Jacquard: straight shadiness , horizontal shadiness , diagonal shadiness , discusses the computer design thoughts, mathematical models and flow diagrams of three kinds hatching pattern.

探讨了织物直丝影光、横丝影光、斜丝影光等3种阴影形式的计算机实现的设计思想、数学模型和流程图。

In this paper,from the view point of engineering realization,the problem of decentralized E-Stabilization of complex giant singular nonlinear systems is cousidered by employing the theory of variable structure contol, the property of diagonal dominant matrices and Lyapunov function.

应用变结构控制理论和对角占优矩阵的性质，结合Lyapunov函数方法，从工程实现的角度考虑并研究了一类复杂巨型广义非线性系统的分散E—镇定问题，在一定条件下。

I have designed a mold cavity injection mold Through to the lid craft's correct analysis,and narrated the mold formation components, the raised template, the concave template, the push pedal, a frame plate as well as the diagonal draw bar, the slide in detail and so on design.

摘 要：通过对盒盖工艺的正确分析，设计了一副一模一腔的注塑模具。

"Thus, there is no strong diagonal line, and the fabric is smooth-faced, with an unbroken surface made up of long float ing warp yarns."

因此缎子也没有很深的对角纹路，其质地光滑，没有断裂处。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。