查询词典 nauplius

Increased number of both total and granular haemocytes at nauplius I stage impressed a possible enhancement of the immune system as the embryogenesis progressed.Ⅱ.

在无节幼体Ⅰ期样品中，血细胞总数和大颗粒细胞数量较胚胎期都显著增加，反映了对虾免疫系统随着胚胎发育的进行而加强。

PHMG content within the range of 125 mg/L did not influence the oospore hatchability of Penaeus japonicus and the content within 0.5 mg/L had no significant influence on metamorphosis rate of nauplius larva.

聚六亚甲基胍含量在125 mg/L范围内对日本对虾受精卵孵化率无影响，含量0.5 mg/L以内对无节幼体变态率无明显影响。

Nutrient-enriched reservoirs support greater abundance and biomass of copepods. However, dominance of Calanoids was lower while dominance of cyclopoids, copepodids and nauplius were much higher in the nutrient-enriched reservoirs.

随着水库营养水平的升高，桡足类密度和生物量也相应增加，但是大型哲水蚤的优势度降低，而剑水蚤和桡足类幼体的优势度上升。

The developmental stages,six nauplius and five copepodid stages,excepting the adult,of Temora turbinata are described and illustrated.

本文描述锥形宽水蚤的6个无节幼虫期和5个桡足幼体期的主要形态特征，并绘制各期幼体图版。

The results show that they fee d on a variety of prey items, and tend to eat Calanoida, Brachyura Zoea larva, H arpacticoida and Nauplius.

结果表明黄鳍刺虎鱼前期幼鱼为浮游动物食性，主要摄食镖蚤类、短尾类幼体、猛蚤类和甲壳类的六肢幼体。

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。

Result The heterobacteria, vibrios and pathogenic Vibrio parahaemolyticus were the roost in fertilized eggs of shrimp rot the least in nauplius, then their number would increase with growth. During whole rearing period, both heterobacteria in larvae, vibrios in water would increase by one order of magnitude, while both vibrios in larvae and heterobacteria in water would increase by two orders of magnitude.

结果］异养菌、弧菌和致病性副溶血菌数量都是对虾受精卵中高，无节幼体中最低，而后逐渐升高在整个育苗期，对虾幼体中异养菌和养殖水体中弧菌增加1个数量级，对虾幼体中弧菌和养殖水体中异养菌均增加2个数量级。

The brain appeared at the egg-nauplius stage Ⅱ and was composed of protocerebrum, deutocerebrum and tritocerebrum under microscope.

三疣梭子蟹胚胎期腹神经链由1对大颚、2对小颚和2对颚足所对应的神经节以及腹部神经链组成。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐