饵

Nearly a hundred sailfish have surrounded a single school of bait fish.

近100条旗鱼的包围了这群饵鱼

According to the change of the enemy\'s quantity and the qualitative theory of the differential equation, we research the spruce aphides and its predator system. At the same time, we discussion the spruce aphid multiplication model when the natural enemy quantity is a certain value and the periodic oscillating model whose the quantity of the natural enemy changes along with the time. Obtains the stability condition of the balance point and the limit-cycle existing condition, the system presents the dissipative structure\'s character. Finally it explains that this theoretical analysis has certain practical significance regarding the preventing and controlling harmful insect.

第五章，松毛虫与其天敌的关系是食饵和捕食者的关系，根据天敌数量的变化，利用微分方程定性理论，研究松毛虫与天敌系统，讨论天敌数量为一定时的松毛虫增殖模型和天敌数量随时间变化的周期振荡模型，得到正平衡点全局稳定性和极限环的存在条件，通过计算机模拟，说明周期振荡的捕食模型能够呈现典型的时间耗散结构特征，对于防治害虫有一定的实际意义。

This paper consists of three parts:We first consider the non-autonomous predator-prey system with both Beddirigton-DeAngelis functional response and dispersion. By using comparison theorem of differential equation, we study the permanance of the system. After that, by constructing suitable Lyapunov function, we obtain some sufficient condition which guarantee the existence of globally asymptotically stable almost periodic solution of the system.

本文研究三方面的内容：第一部分考虑具有扩散和Beddington—DeAngelis功能反应的捕食-食饵系统，利用微分方程比较原理得到该系统一致持续生存的条件；通过构造适当的Lyapunov函数得到了该系统存在全局渐近稳定概周期解的充分条件。

You don't use bait when you're casting.

你投杆都不用饵的吗？

Cane pole fishing, spinning, bait casting and fly-fishing are the four most used methods worldwide.

甘蔗杆钓鱼、纺纱、铸造、飞饵钓四是全世界最常用的方法。

Fishing reels used for trolling, casting and bait fishing.

渔业卷轴用于指正，铸造和饵钓鱼。

In fact, in reallife, the prey species will be usually a?ected by the patchy environment, oncethe food in their patch is exhausted or there are abundant natural enemies intheir patch, they will leave in search for new habitats or refuges, at the sametime, the predator species also will be confined in a isolated patch, when thereis little food to feed on or the last prey is eaten the predators will depart andbecome predator dispersers.

事实上，在现实环境中食饵种群通常会受到斑块环境的影响，一旦在一个斑块上的食物吃完了或者存在太多天敌，它们会离开这个斑块寻找新的栖息地或避难所，(来源：A2dBC论c4文网www.abclunwen.com)同时捕食者种群同样会受到隔离斑块的影响，当在某个斑块上食饵种群稀少或吃完了最后一个猎物，捕食者种群将会离开变成迁徙者到其他栖息斑块上寻找猎物。

There were many heterobacteria aid vibrios but few Vibrio parahaemolyticus in living bait. The correlation coefficients between larvae and heterobacteria and vibrios in water were 0.704 and 0.840 in culture system respectively, while the correlation among heterobacteria, vibrios in living bait and larvae, oater were weak or negative.

活饵中异养菌和弧菌数量很大，致病性副溶血弧菌量很低养殖体系中幼体与水体中的异养菌和弧菌的相关系数分别为0.704和0.840；活饵中异养菌、弧菌与对虾幼体和养殖水体相关性很低或呈负相关。

"Word here but pour that gaze after but hand wield " be that "A Dream in Red Mansions" middle is various narrate to grow once in art judging from content promising fish sets up the bait cause and effect effect have the disheartened line of grass snake on structure effect vanquishing line long distance the integral and indivisible sky is accomplished as for coming up to rectify an article if floating clouds and flowing water the chisel and the vulture adorn the even a tiny bit axe of nothing Shimizu goes out of Seremban just like natural get rid of vulture ornaments But every piece of natural coagulation of thing has become one share trickling sluggishly flow the stream living is natural and aesthetic as well one by one minor livelihood branch has woven into a very dense net the domino.

言在此而意在彼是《红(yan2 zai4 ci3 er2 yi4 zai4 bi3 shi4 _hong2)楼梦》中多种叙事艺术中一种，被脂砚斋喻为&言此而注彼，目送而手挥&，从内容上看有为鱼设饵的因果作用，在结构上有草蛇灰线，伏线。。。言在此而意在彼是《红(yan2 zai4 ci3 er2 yi4 zai4 bi3 shi4 _hong2)楼梦》中多种叙事艺术中一种，被脂砚斋喻为&言此而注彼，目送而手挥&，从内容上看有为鱼设饵的因果作用，在结构上有草蛇灰线，伏线仟里的效果，从整篇文章上来看浑然天成，如行云流水，无丝毫的斧凿与雕饰，宛如清水出芙蓉，天然去雕饰，每一件事情又自然而然的凝结成了一股涓涓流淌的生活流，自然而又唯美，而各个小的生活支流又织成了一张密密麻麻的网，牵一发而动全身。

The killing efficiency of 3000 MLD/g Type-C Botulinus neurotoxins particles and 0.1% Oats baits water were (91.14±0.17)% and (89.00±0.63)% after treatment for 6 days, respectively, and there was significant difference between two methods.

投饵后第6天3000 MLD/g C型肉毒杀鼠素饵粒处理组平均校正灭洞率为(91.14±0.17)%，0.1%的水剂处理组平均校正灭洞率为(89.00±0.63)%，二者灭效差异有统计学意义。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。