性腺

In addition, the gonadal development of Lepomis cyanellus was studied through tissue section.

同时应用组织切片技术对蓝太阳鱼的性腺发育时序进行了研究。

Day 12 to day 40 was a sensitive period for the gonadal differentiation.

孵化后12~40d是鲫鱼性腺分化的敏感期。

Analysis of 10 cases of 46,XY pure gonadal disgenesis

46，XY单纯性腺发育不全10例分析-中国学术期刊网络出版总库

These gonadal hormones have been divided into female hormones and male hormones.

这些性腺激素被分为雌激素和雄激素。

Pineal general human development in middle childhood to the peak, thereby inhibiting premature gonadal development.

人类的松果体一般在儿童中期发育至高峰，从而抑制了性腺的过早发育。

The results indicated that (1) the 147Pm, 141Ce and 147Nd had strong adsorptivity in soil, so they were hard to transfer and easily accumulated in soil or sediment;(2) all the organisms (5 aquaties and 4 eatable plants) tested showed apparent 147Pm concentrating capabilities;(3)the residues of 147Pm, 141Ce and 147Nd were unevenly distributed in the animal's viscera and tissues, higher residues were found in bone, marrow, eye, brain, heart, adipose and testis, showing selective accumulation;(4) with intraperitioneal dosing of Nd or Ce 200mg ·kg -1 apparent inhibition to gonadial hormone secretion in mice was found and with 200 and 800mg·-1 of Ce added in feed, the malformation rate of spematozoon showed higher.

综合研究结果表明： 14 7Pm、14 1Ce和14 7Nd在土壤中具有强的吸附性，而且难以迁移，易于在土壤和底泥中积累；( 2 )供试的 5种水生生物、4种陆生食用植物对14 7Pm均具有明显的富集性；( 3) 14 7Pm、14 1Ce、14 7Nd在动物体内脏器和组织间呈不均匀分布，在骨骼、骨髓、眼、大脑、心脏、脂肪和睾丸中残留量较高，表现了明显的选择性蓄积；( 4 )一次性腹腔注射2 0 0mg·kg-1的Ce和Nd对小鼠性腺激素的分泌有明显的抑制作用，以 2 0 0和80 0mg·-1的Ce随饲料摄入对雄性小鼠精子畸形率明显升高。

Onchidium struma Cuvier; Reproductive system; Gonadial development; Reproductive cycle

中文关键字：瘤背石磺；生殖系统；性腺发育；生殖周期

Furthermore,MH shortenmolting period and accelerating the gonadial development.This is the major causegiving rise to precocious mature in the cultured chinese mitten crab.Keywords:Eriocheirsinensis Precocious crab Culture Ultrastructure Cell

体内高浓度的胆固醇通过抑制眼柄神经分泌细胞抑制性神经肽激素的合成和释放，促进Y-器官合成和释放MH，缩短养殖河蟹的蜕皮周期，加速了河蟹的性腺发育，造成养殖河蟹性早熟。

They always have sex hormones or gonadotropic hormones'function; androgen can improve the excitability on central nervous system, and induct sexuality, and keep regular sex function.

传统的壮阳类中药大多具有性激素或促性腺激素样作用，雄激素可提高性中枢的兴奋性，从而诱发性欲冲动，并维持正常的性机能。

The basic principle of the vaccine ' s formulation was designed to use a key pregnant-depentent,transit present,tissue specific and molecular structure well-known glycoprotein hormone—human chorionic gonadotropic hormone through the application of protein engineering techniques,the crossreactivity with three other pituitary glycoprotein hormones and the immunotolerance of the body to this "self" hormone have been overcome and the biological activity of hCG remained intact.

疫苗构建是采用妊娠特异性强、妊娠期短暂出现的糖蛋白激素——人类绒毛膜促性腺激素(human chorionic gonadotropic hormone，hCG)为靶抗原，应用蛋白质工程技术研制的。

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