查询词典 nets

It is worthy of mentioning that complex 21 is the first (3, 4)-connected self-penetrating 3D polymer; complex 22 is the first two-fold interpenetrating trinodal 4-connected network with (64·82)(63·83)2(65·8) topology; complexes 23-27 all show three-fold interpenetrating networks, containing the rare (3, 4)-connected (63)2(64·8·10)3 net and the common diamond nets as well as α-Po nets.

值得注意的是，配合物21是第一个(3， 4)-连接的自穿插网格；配合物22是第一个二重穿插的三节点4-连接的(64.82)(63.83)2(65.8)拓扑网格；配合物23-27呈现三重穿插的网络结构，包括少见的(3， 4)-连接(63)2(64.8.10)3拓扑网格以及常见的金刚石网格和α-Po立方格子。

A numerical method is gived to distinguish that a Petri net is a time charac-teristic nets or not.The time characteristics of transmit are discussed and the density formula of transmit is given. stochastic petri nets ; time characteristic ; distractive matte

一般情况下，随机Petri网现有的分析方法大多是假定变迁的发射时间服从负指数分布，然后将网标识过程等价于连续参数马尔可夫过程，然后利用求解马尔可夫过程的一套数学方法来分析Petri网的时间特

The plates are obtained by two steps: compound felt and hot pressing shaping. The opening, mixture, carding, net-paving and needling process that affect shaping process of the blending fiber needle felt are investigated. Then it is concluded that the fiber nets from the BC-272B carding machines are uniform when the rolling speeds of licker-in, cylinder, doffer roller of the roller carding machine are 900r/min, 850r/min and 15.6r/min separately. The fiber needle felt is in a good condition when the paving nets have 8 layers, the type of the felting needle is 30, the density of needling is 1800end/m2, and the depth of needling is 3mm.

纤维复合板材分混合制毡和热压成型两步完成，分别探讨了开松、混合、梳理、铺网、针刺各工序对纤维针刺毡成型的影响，得出BC-272B罗拉梳理机的刺辊转速900r／min、锡林转速850r／min、道夫转速15.6r／min时，从梳理机下来的纤网较为均匀；铺网层数为8层、刺针型号为30、植针密度1800枚／m~2、针刺深度为3mm时，纤维针刺毡的效果较好，纤维复合针刺毡单位面积重量为200g／m~2。

If it is fishing, half-water fishing on the float hanging use, fishing at the end of the sink to the bottom using (luring the fish have a tether device the holes); also be used for hanging nets, wire mesh, pull net, seine net, maze, water fish cages in the cage such as fishing nets can be used, generally can be placed at the end of the central network, or hang around on the Internet, or on the network.

如果是钓鱼，半水钓就浮球吊着用，钓底就沉底使用；也可以用于挂网、丝网、拉网、罾网、迷魂阵、水地笼等鱼网鱼笼都可以使用，一般可以放在网底中央或者挂在网上或者放在网附近。

Trials have shown that the best way to catch them is by the use of fyke nets, long bag-shaped nets which are held open by hoops.

实验证明，捕捉绒鳌蟹的最好办法是用长袋网：这种网形似一只长袋，用箍圈固定网口。

ABSTRACT The access nets have been the bottleneck for all kinds of highspeed digital services nets in their development.

接入网AN已成为各类高速数字业务网发展的瓶颈问题。

Firstly, a hybrid system about the start-up process of a leatheroid's DMF recovering plant has been studied, the hierarchical control model of this system was built using timed Petri nets and hybrid Petri nets theory. The monitoring method of start-up process was discussed by studying the coordination layer of this model, and the reachability method was adapted to analyze this model.

论文首先对混杂系统——人造革DMF回收开车过程进行了研究，结合赋时Petri网和混合Petri网建立了其递阶控制模型；通过对其协调层的深入讨论，研究了开车过程的监控问题，采用可达性等方法对模型进行了分析。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

The original Wing Dragon Mine Screen Factory - specializing in the production of stainless steel welding-type ore screen, sieve slit Article films, sieve, sieve basket, sieve vibration welding, composite mesh, high frequency sieve, sieve cones, curved screen, jig plate, punch plate, polyurethane plate, rubber plate section bar, stainless steel sets of Nets, nylon mesh sieve tablets high intensity, and building welded mesh, steel grating Net, Net oil with steel, aluminum Nets, Nets punching plate, welded wire mesh, stainless steel net, vapor-liquid filters, welding filter cartridges, stainless steel sintered Net, filter plate, metal filter.

河北省安平县永龙矿山设备有限公司原永龙矿筛网厂）-专业生产不锈钢熔接式矿筛网、条缝筛片、筛板、筛篮、焊接式振动筛网、复合筛网、高频筛、圆筒筛、弧形筛、跳汰机筛板、冲孔筛板、聚氨脂筛板、橡胶扎条筛板、不锈钢网套、尼龙筛片等高强度筛网，及建筑焊接网片、钢格板网，石油用钢板网，铝板网、冲孔网板、电焊网、不锈钢网、汽液过滤网，焊接过滤筒、不锈钢烧结网、过滤盘、金属滤芯。

The main production and operation of a variety of geogrid, safety fence, shade nets, plant support nets, anti bird nets, filters and other engineering materials.

主要生产经营各种土工格栅、安全围栏、遮光网、植物支架网、防鸟网、过滤网等工程材料。

Life. But the intrinsic way of the Internet by wire confines accessing and using of the network information.

然而，Internet固有的有线连接方式大大限制了人们对网络信息的访问和使用。

I have a strong persuasion that this is true .

我坚信这是正确的。