周期发育

More oocytes from natural ovulation cycles (28%) developed into blastocyst than that from superovulation (16%).

与超排相比较更多的在自然周期的体内成熟卵母细胞(16%，28%)发育到了囊胚。

Twenty-six of them wereeach given this drug lmg daily after the first coition during the cycle,and 12 womenused 2 mg for once for postcoital contraception.

所有服药妇女的子宫内膜发育均受不同程度抑制，对在周期早期开始服药者内膜的抑制作用较后期服药者明显。

The intersex development can be divided into three periods:early,middle and late period.

黄鳝的雄性性成熟发育也可以划分为六个时期，雄性发育为多周期类型。

Aspirin has effect in the treatment of maldevelopment of endometrium,transvaginal color Doppler sonographytechnique has effect in diagnosis and treatment of clinicalinfertility.

本研究对 4 8例子宫内膜发育不良患者应用肠溶性阿斯匹林治疗周期，采用经阴道彩色多普勒超声技术(TransvaginalColorDopplerSonography ，TV -CDS)检测治疗前后子宫内膜厚度及子宫内膜局部血流状况，以探

Conclu sion:(1)Surface densities of PCNApositive cells reached their peaks on 14th day after birth,but the number of apoptotic cells reached its peaks on 21st day p ostnatal,so the apoptotic peak was late the proliferating peak for a week,and related to the particular period in cycle of seminiferous epithelium;(2)The spe rmatogium were found move from center to the periphery of the seminiferous tubule and arrange disorder to order;(3)The spermatogonium remained replicating activ ity of DNA during the developing stage.

生精细胞凋亡的高峰要滞后其增殖峰1周左右，而且与其所处生精周期的特定阶段有关；（2）精原细胞在胚胎发育过程中向曲细精管周边迁移，其排列由无序到有序；（3）在生后各发育阶段中，精原细胞始终保持DNA复制的能力。

Using electronic microscopy and cytochemical methods, we studied the distribution changes of the cell ergastic substance and development of secondary vascular tissues. Development of secondary vascular tissue took on an inherent rhythm, showing alternation of dormant and differentiated stages in periodicity of one year, and the formation of secondary phloem and xylem was alternate.

利用电镜技术及细胞化学方法，研究了美洲黑杨次生维管组织的发育以及细胞内含物分布的变化，发现次生维管组织的发育具有内在节律性，在年周期中表现为分化期和休眠期交替出现；次生韧皮部与次生木质部交替分化形成。

In this study, we investigate how the cell cycle coordinates gastrulation cell movements in zebrafish.

一方面是细胞分裂/细胞周期，通过无数次的细胞分裂，胚胎发育从一个单细胞受精卵发育为多细胞成体。

The pulsative index and resistance index of the ovarian and uterine arteries blood flow and endometrial pattern and thickness were measured by transvaginal color Doppler imaging on the day ofHCG administration.

国内这方面的报导尚非常少见。我们于2002年11月至2003年11月对来院行常规IVF-ET助孕术的174例不孕患者，于治疗周期的第8天开始应用TV-CDS测定卵巢动脉和子宫动脉的血流图，以监测卵泡发育及子宫内膜发育。

Though it was slower in the frozen-thawed embryo transfer group than that of the fresh embryo transfer group, there were no significant differences in estrous cycle between experimental group and normal control group. The grafts were taken out and observed on day 63 after transplantation, rich blood vessels were formed on the cover of the graft, arterioles and venules could be seen under microscope. Histological examination of graft revealed that transplanted fetal ovary contained follicles in different developing stages, vesicula graafianae and corpus luteum were formed, and the morphous of graft was no obvious differences to normal ovaries.

冷冻移植组大鼠恢复动情周期虽稍短于新鲜移植组，但差异并无统计学意义。63 d后取出移植物观察，见移植物色泽红润，表面有丰富的血管形成，镜下见卵巢内有大量的小动脉和小静脉；移植物组织学检查发现卵泡的发育，光镜下可见不同发育阶段的卵泡，有成熟卵泡和黄体形成，形态与正常卵巢无明显差别。

Result: Cafe au lait spots distributed girl's left cheek and left side of the back at birth; 4 years late, she appeared first vaginal bleeding, since 6 year old, her secondary sex characters developed, height growth acceleration; between 4 to 9 year old, she has occurred 5 times pathological bone fractures already; her menstrual cycle starts regularity from 9 year old, and when she was 10 year old, her serum E2 had reached the grown up woman level, but FSH and LH was normal. The B ultrasonic wave inspection demonstrated an ovary cyst at left side in pelvis cavity, X-ray picture of left thighbone conformed to the fibrous dysplasia.

结果：患儿出生时左脸颊和背部左侧多处咖啡牛乳斑；4岁首次阴道流血，6岁开始第二性征发育，生长加速；4~9岁曾5次病理性骨折；9岁起月经周期规则；10岁时血清雌二醇已达成人水平，促黄体生成素和促卵泡生成素正常；B型超声波检查曾显示盆腔左侧卵巢囊肿；左股骨X线片报告符合骨纤维发育不良征象。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。