nets

Many dolphins die each year from entanglement in fishing nets.

每年都有许多海豚被捕鱼网缠绕致死。

The fishermen draw in their nets full of fish.

渔民们拉起满网的鱼.

They fish in all manner of waters with all manner of nets.

他们在大江小河里用各种鱼网来捕鱼.

This paper describes a Petri nets model of the basic pull system based on the theory of Petri nets.

基于Petri网理论，建立了基本拉动系统的Petri网模型；

Making all kinds of fabries, sunshade nets, packing bags, safety and shipping nets etc.

本公司规模生产各种针织纺织面料 、 遮阳网 、 包装袋及安全网、养殖网等产品.

The squadron's armour is draped in sand-coloured nets that melt into the landscape.

装甲连的装甲车上罩着沙色的网，和周围的风景融为一体。

By using of the characters of safe Petri nets, a place invariant generation algorithm which uses the reachability tree of safe Petri nets and complete graph of mth order with self-loop is presented.

利用安全Petri网的特点，提出一种由安全Petri网可达树和带自环的m阶完全图来计算位置不变式的生成算法。

Based on timed Petri nets and Colored Petri nets, we presented an extended Petri net ( EPN). A job-shop scheduling ( JSS) problem was modeled with this extended Petri net.

在时间Petri网和着色Petri的基础上，提出了一种新的扩展Petri网（EPN）模型，利用该扩展Petri网，建立了车间调度EPN模型。

In this paper, a Web Services composition model based on model driven architecture is established. Using Petri Nets for its modeling, and using reachability tree nature of Petri Nets validates the model boundedness, accessibility, activity and integrity.

本文构建了一种基于模型驱动的Web服务组合模型，采用Petri网对其建模，并利用Petri网的可达树性质验证了模型的有界性、可达性、活性和完整性。

The freighter fouled its propeller in fishing nets.

货船的螺旋桨被渔网缠住了。

In this paper, we decrease the information losing during unbounded Petri nets running by finding an improvement of reachability tree, and finally propose an algorithm for reachability decision of any Petri nets including unbounded Petri nets by making use of its improved reachability tree.

本文通过寻求一个可达性树的适当改良而令无界Petri网运行过程中的信息丢失减小，并利用这个改良的可达性树给出一个任意Petri网（包括无界Petri网）的可达性判定方法。

Local fishermen's nets kept snagging on underwater objects.

当地渔民的渔网老是被水下的东西钩住。

This thesis combines the object-oriented ideas with the basic theory of Petri nets to develop a visual tool of Petri nets and the simulation of the flexible manufacturing systems. A PNT is a type of files to represent the information of Petri nets.

本文将面向对象的思想和Petri网基本理论相结合，开发出Petri网可视化工具并对相应的柔性制造系统（FMS）模型进行仿真。PNT文件是一种保存Petri网信息的文件。

Stefanski also reiterated the Nets could do a sign-and-trade and admitted the Nets have done contingency planning for various scenarios.

他重申网队有可能先签后换，也承认他们为不同情况设计了不同的备选方案。

Then Stochastic Petri Nets is applied to modeling of a complicated hydraulic system. On the basis of the Petri Nets model, the dynamic characteristics of the system are analyzed and the reachability tree is established.

基于随机Petri网理论，论文完成了某复杂液压系统的动态可靠性建模，建立液压系统的可达树模型，并对液压系统的运行特性作出分析。

Based on the structural theory and the duality of Petri Nets, a subclass of Asymmetric Choice Nets ( AC), New Extended Strong Asymmetric Choice Nets ( NESAC), is defined.

利用Petri网结构理论与对偶性，在非对称选择网（AC）中找到了一个子类：新扩展强化非对称选择网（NESAC）。

In our country, the first degree for controlling nets of GPS is C in many middle and big cities, which main purpose is to develop the basic control nets and to give service for construction and layout.

在我国大中城市一般布设C级GPS网作为首级控制，其主要任务是发展城市基础控制网，为测图和施工放样服务。

Dynamic task allocation model of protocol nets based on Petri nets

基于Petri网的合同网任务动态分配模型

They went down to the shore to watch the fishermen hauling in their nets.

他们跑到岸边看渔民拖网.

High Level Petri Nets with marking variables is defined and it is shown that for this class of nets it is possible to construct efficiently the reachability tree.

本文定义了具有变量标识的高级Petri网并给出了构造该类网的可达树的算法。

Besidcs, the reduction of multi-are petri nets and the decomposition of petri nets are briefly discussed.

此外, 本文还就多弧Petri网 的归约问题和Petri网 的分解问题作了简要讨论.

Ropes and nets were dollars and cents.

拉绳和网都是值钱的东西.

The fishermen are mending their nets.

渔民们正在补渔网.

The fishermen drew in their nets full of fish.

渔夫们拉回了装满鱼的渔网.

Several fishermen sat on wooden barrels, tending their nets.

几个渔夫坐在木桶上修补渔网。

The fishermen cast their nets into the sea.

渔民们将网撒入海中.

The birds got entangled in the nets.

鸟儿被网缠住了.

The basketball nets hung down from the ceiling at either end of the gymnasium.

篮筐分别从体育馆两头的天花板上悬吊下来。

Animals get tangled in fishing nets and drown.

动物被缠进渔网里淹死了。

To continue the former researching, we introduce fuzzy time intervals, extended fuzzy timing Petri nets, operations of possibility theory and so on. Then we put forward an algorithm of reasoning and validating of fuzzy temporal knowledge based on extended fuzzy timing Petri nets.

本文在原来工作的基础上，引入模糊时间区间、扩展模糊时间Petri网（EFTPN）及可能性值运算等内容，提出了一种基于EFTPN的不确定性时间知识推理和验证算法。