- 更多网络例句与对折相关的网络例句 [注：此内容来源于网络，仅供参考]
-
Drinker , he awkwardly folded back the pages of an evening paper, eagerly
望，他笨拙地把一份晚报的对折起来，直奔抢眼的黑色字体的头条
-
Using the method of optimal efficiency and maximal quantity of refrigerating output, a thermoelectricity refrigeration system commix with compress refrigeration is designed.
本文对塑料片低温对折机功率热电制冷系统的设计方案进行了探讨。
-
The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.
本文的主要研究工作和贡献如下：●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法，即首先求出多路信号之间的互相关，进而得到互功率谱密度矩阵，然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响，并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来，最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数，利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集；●提出了一种确定FH信号检测门限的策略，该策略不仅使得检测门限能够通过理论计算得到，而且还显著地抑制了非跳频信号的干扰，从而能有效地检测出FH信号；●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法，即首先利用宽带空间谱测向技术得到接收信号的DOA，然后采用宽带波束形成技术对特定方向进行空间滤波，实现多个信号的分离，最后分别提出了两种FH信号的盲检测和参数盲估计方法，第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号，第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号；●将空间插值的概念和宽带波束形成技术结合起来，提出了一种基于频域处理的宽带恒定束宽的波束形成方法。
-
In this paper, the dynamic properties of folded plate type latticed shell are studied by modal analysis, response spectrum and time history method with the effects of thinness and slope on dynamic internal forces also discussed.
本文采用振型分解反应谱法和时程分析法对折板式网壳结构的动内力作了研究，计算分析了结构厚度、坡度等参数对动内力的影响。
-
A collection of leaves of parchment or paper,folded one within the other,in a manuscript or book.
对折的一叠手在手稿或书中，互相对折在一起的一叠羊皮纸或纸
-
A piece of parchment .Parchment made from such hide.The result resembles parchment paper.
对折的一叠手在手稿或书中，互相对折在一起的一叠羊皮纸或纸
-
Distribution of detailed flow parameters such as liquid velocity and stream function were measured by this method.
认为反应器上升段表观气速对液相水平速度和垂直速度均有影响，其中对液相垂直速度的影响更大：表观气速增大，液相最大垂直速度一般增大，但这一变化规律并不是单调的；PIV对折流区的观测反映了该区域流场在气相通入后的最初25 s内的变化历程，流场发展的快慢与进气口的气速有关，气速越大，流场发展得越快。
-
On the basis of the bender forming characteristic analysis, this article gives necessary function of NC bender and designs distributed computer control system, which controlled the bender intellectively with one industrial computer and two PLC.
罗凯华（武夷学院，354300）摘要：在分析折弯机成形特点基础上，本文提出了数控折弯机的必备功能，设计出分布式的计算机控制系统，由一台工业控制机和两台PLC组成，实现了对折弯机的智能控制。
-
Gate knife hybrid folding machine for a thicker paper there are easily adaptable because thicker paper does not require too much roller, and paper texture on the hinge-it was not significant.
栅刀混合式折页机对于较厚的纸张也有很好的适用性，因为较厚的纸张不需要太多的转辊，而且纸张的纹理对折页的影响也不大。
-
Put two adjacent fabrics(single-fibre cloth), each measuring 5 cm ×4 cm , side by side on a specimen measuring 10 cm × 4 cm, next, either sew roughly four sides of the specimen with white cotton sewing thread, or fold in half the specimen into 5 cm ×4 cm size so as to lay the adjacent fabric inside, and sew roughly at its near centr of the specimen with white cotton sewing thread to make the sewing line parallel to the folding line.
把两个各自5厘米× 4厘米毗连的织布，并排放置成10厘米× 4厘米的试样，然后用白棉缝纫线粗略地在试样四周进行缝制，或把试样对折成5厘米× 4厘米大小以确保毗连的织物放在里面，然后用白棉缝纫线以平行于对折线的方向在试样近中心处进行粗略缝制。
- 更多网络解释与对折相关的网络解释 [注：此内容来源于网络，仅供参考]
-
CREASE FOLD：中骨对折
CENTER BACK 后中 | CREASE FOLD 中骨对折 | CENTER CREASE LINE 中骨线
-
double back：把...对折;往回跑
do wrong 做错;作恶,犯罪 | double back 把...对折;往回跑 | double up 弯曲(手脚等)
-
double back：对折
double as 兼饰两角 | double back 对折 | double bed 双人床
-
double back：向后折; 把...对折 往回跑
double as (演员)兼演(另一角色) | double back 向后折; 把...对折 往回跑 | double in brass 能演奏一种以上乐器 同时做两种工作; 从两处拿钱
-
double up：弯着身子;把...对折
double up 弯曲(手脚等) | double up 弯着身子;把...对折 | down with 打倒;把...拿下
-
hinged：对折的
热封的: heat sealed | 对折的:hinged | 透明折盒: Clear Folding Cartons
-
Box pleats：复褶,对裥,和合裥[左右对折的褶裥]
Blind pleat暗褶 | Box pleats复褶,对裥,和合裥[左右对折的褶裥] | Cartridge pleats 弹带形褶裥,管形褶裥
-
Box pleats：复褶,別对裥,刌和合裥[左右对折的褶裥]
Blind pleat暗褶 | Box pleats复褶,別对裥,刌和合裥[左右对折的褶裥] | Cartridge pleats 弹带形褶裥,凊管形褶裥
-
Half-folded：对折的
2. 对折的: Half-folded | 3. 透明折盒: Transparent Folding Cartons | 4. 泡壳: Blister Shell
-
Box leats：复褶,对裥,和合裥[左右对折的褶裥]
Blind leat暗褶 | Box leats复褶,对裥,和合裥[左右对折的褶裥] | Cartridge leat 弹带形褶裥,管形褶裥