中节

During the breeding process of Penacus vannamei,the PCR and RT-PCR techniques are applied to detect three types of virus,that is,WSSV,IHHNV,TSV,to protect the parental shrimp,egg,nauplius,parental shrimp feed,artemia and water from being infected.The purpose of this work is to breed the healthy Penacus vannamei,and to offer a feasible measure to keep a sustainable development for Penacus vannamei breeding.

应用PCR和RT-PCR技术对WSSV、IHHNV和TSV这3种对虾病毒在凡纳滨对虾育苗过程中各个环节进行了检测，防止亲虾、卵、无节幼体、仔虾、亲虾饵料、丰年虫、水体等诸环节受到以上3种病毒携带或感染，保证培育出的凡纳滨对虾仔虾是高健康的虾苗，为凡纳滨对虾健康养殖的可持续发展提供一条可行的途径。

The results showed that water content decreased first, then increased in the gastrula stage of embryonic development, reached the highest content at the second phrase larvae stage and then began to decrease from the third phase larva stage. The content of lipid in the dry weight increased with the embryonic development stages, but decreased at intramembranous nauplius stage, the second phase larva, and the infant stage of larvae development. The rate of lipid in wet weight decreased and the content of C20:4w6、20:5w3 and C22: 6w3 decreased.

结果显示，黑斑口虾蛄在胚胎和幼体的发育过程中，水的体积分数先降低，至原肠胚期开始升高，到第二相幼体期达到最高，之后又有所回落；脂类占组织干重的比率呈升高趋势，但分别在膜内无节幼体、第二相幼体和仔虾蛄期略有降低；脂类占组织湿重的比率呈降低趋势；花生四烯酸、EPA和DHA的体积分数都呈降低趋势。

Most of the chambers will be NEG coated in the straight sections.

在它的直线节真空系统中，绝大部分的真空盒内表面将被镀上NEG薄膜。

The result s showed that the outgrowth of neurites as well as neuroglia cells from SCG were significantly increased when SCG were incubated with non-lymphoid conditioned medium compared with that of control medium.

结果显示，与对照培养液相比，条件培养液能够显著地促进体外培养中颈上节交感神经生长锥的发育，且这一作用在不同程度上可被抗NGF和NT-3抗体特异性阻断。

People, particularly children who happen to be the last to come in, leave their doors on the latch at night.

在感恩节的气氛中，乔治没有跟朋友们一起庆祝节日，却沉浸于阅读他父亲留给他的日记。

In the study, we have found that when the long axis of an elliptical transducer is 2.5 times of the distance between nodal line and the plate center under free boundary condition, the depth of the first dip in mid frequency range of SPL spectrum can be greatly reduced.

从这些关系中可以得到激振器长轴是在自由边界条件下，节线到振动板中心距离的2.5倍时，中音谷会得到比较平缓的结果。

Besides, the selection of nodal point s of hidden layer neuron network based on BP is key to the performance of image network, so it is a must to select proper nodal point s of the hidden layer.

另外，基于BP算法的神经元网络中隐含层节点数的选择是影像网络性能的一个关键因素，所以，要选择恰当的隐含层节点数

In the present analysis model, the channel is divided into a number of nodes.

在本文的分析模型中，流道被分为一定数量的节段。

G, Colocalizations of IB4 and VR1 were frequentally found in nodose ganglion.

VR1在PG内的表达与结状神经节类似，多见于中、小型神经元胞体和它们的突起以及一些神经纤维（Fig.1B）。

In section Ⅱ, the hierarchical method are used to obtain the closed-loop optimal control laws of linear and non...

第三节论述了Stackelberg策略在递阶控制中的应用。第四节介绍了两种递阶系统状态估计的算法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。