对折的

Fold chenille stems in half and thread the ends into the holes in each base, leaving a small loop ②sticking out.

将绳绒线对折，然后将其两端穿入纸杯底部的两个孔内，线圈应该留出一小段。

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。

Methods: 230 cases of tooth fractures of the elderly were investigated and different prosthetic measures were taken.

材料与方法：对230例老年人牙折的病例进行临床调查，并根据不同情况采用各类方法修复。

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。

Seeds uniseriate, wingless, oblong, plump; seed coat alveolate-reticulate, not mucilaginous when wetted; cotyledons conduplicate.

种子单列，无翼，长方形，肥厚；网状alveolate，不黏的种皮被弄湿；子叶对折。

Spread the Mayer wallpaper glue liquid onto the back surface of wallpaper,then fole the paper for 12 minutes ensuring the soakage of glue liquid into the paper.

将墙纸胶浆涂刷在墙纸背面，将涂完胶的墙纸对折放置十二分钟以使胶浆浸润墙纸。

Corona lobes circular to almost square, somewhat spreading, with slender, erect or inflexed tip, as long as gynostegium

副花冠裂片对纤细几乎公平，有点平展，具，直立或内折的端部，倍于合蕊冠圆 34 Tylophora glabra 长梗娃儿藤

The damage and failure modes of brittle materials under tension and compression are different. The self-similar growth of open microcracks under tension, the frictional sliding, mode-n self-similar growth and kinking of closed microcracks under compression and their influences on the mechanical properties of materials are studied in detail.

在拉伸和压缩情况下微裂纹损伤机制和材料破坏模式都不相同，本文对张开微裂纹的自相似扩展和闭合微裂纹的摩擦滑移、自相似扩展、弯折扩展进行了详细的研究，分别给出了它们对材料的宏观力学性质的影响。

Roll discos out to about 1/2-inch larger in diameter. Spoon about 1 tbsp. meat mixture into middle, fold over; moisten edges and seal with a fork.

展开水饺皮约1/2 英寸大，中间加入大约一匙的混合食材，将皮对折，边缘沾水，并用叉子将饺子封起。

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。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。