开始发育

Female echidna lay eggs in temporary ago, about 7-10 days, began to develop a child care bag.

雌针鼹在临产卵前，约7－10天即开始发育出育儿袋。

Histological structures of bursas of Fabricius were observed at the different developmental stages from chicken embryoes to chickens. The results were as follows. The bursa of Fabricius began to develop on the 13th day of post-hatching and its cell aggregated into the nodosity clique underneath the epithelium mucosae. On the 15th day of post-hatching, those cell cliques were surrounded by the flat epithelium and formed the basic structure of folliculus lymphaticus. The number of lymphocytes in the folliculus lymphaticus increased gradually, and the medulla and cortex of a majority of folliculus were not discriminated obviously. Until on the 7th day for chickens, the medulla and cortex of folliculus formed completely and the number of folliculus increased significantly. From 21 to 35 days old, the folliculus lymphaticus transformed from polygon into rectangle. Mucosa epithelial cells increased gradually and their cytoblasts arranged compactly into aline in the basilar part on the 35th day.

本研究观察了从鸡胚到出壳后的不同生长发育阶段法氏囊的组织结构，结果表明：胚胎13日龄时，法氏囊开始发育，粘膜上皮下形成结节状细胞集团；胚胎15日龄，聚集的细胞集团形成初始的淋巴滤泡；胚胎18日龄到出壳后1日龄，滤泡内淋巴细胞数量增多，多数滤泡髓质和皮质界限仍不明显；7日龄雏鸡法氏囊髓质皮质分界清晰，滤泡数量显著增多；21日龄到35日龄，滤泡由多边形逐渐转变成长方形；在35日龄时，粘膜上皮细胞逐渐增多，排列紧密，细胞核紧密排列成直线位于基底部。

In oosperm firm germinate when, the duplicate process drag in that wait goes to cell, gene, protein voltaic flow, there already was a report to show at present in medical literature, minim electromagnetic wave can change calcic ion to carry the rate of cellular film really, send the initial stage of Yo in embryo so, expose may cause abnormal segmentation in electromagnetic wave, produce the phenomenon of duplicate mistake even.

在受精卵刚开始发育的时候，细胞、基因、蛋白质等的复制过程牵涉到电流的流动，医学文献中目前已有报道显示，微量电磁波确实会改变钙离子通过细胞膜的速率，所以在胚胎发育的初期，暴露于电磁波中可能会引起不正常的细胞分裂，甚至产生复制错误的现象。

Results The age of breast developmentwas9to12years old,the onset of pubes development was9to13years old,and the age at menarche was11to13years old.

结果 乳房开始发育的年龄为9～12岁，阴毛开始发育的年龄集中在9～13岁，月经初潮年龄集中在11～13岁。

The expression of TrkA had an obviously increasing tendency in the cortex of telencephalon from E15 day to E17 day.

胎鼠纹状体、海马的发育较晚，E17天开始发育，TrkA在其内的表达与皮质内相似。

The floral primordium is initially circular, along with the edge of which slight concaves occur. The outmost whorl of tepal primordia arises as a result of apical meristem division and the floral primordium then is in the shape of triangle. Two further whorls of tepal primordia arise in spiral acropetal sequence and are alternately arranged. When the innermost whorl of tepal primordia is at the late developmental stage, the foremost stamen primordia arise almost simultaneously in spiral acropetal succession and all of the stamen primordia are ultimately arranged in a triangle-cone form. Late in stamen primordium development, carpel primordia arise as same as the young stamen primordia and grow laterally. Grooves are present on the adaxial side of each carpel and develop into ventral sutures gradually closing up.

观光木的花原基最初为近圆形，随着顶端分生组织的活动，花原基边缘处出现浅凹，形成第一轮花被片原基，此时，花原基呈三角形排列，后两轮花被片原基依次发生，与前一轮互生；在内轮花被片发生的后期，最初几枚雄蕊原基几乎同时出现，呈螺旋状向顶发生，最后排列成三角圆锥状；雄蕊原基发育后期，心皮原基开始发育，形状与发育初期的雄蕊原基相似，随后心皮原基进行侧向生长，在近轴面出现浅凹，进而发育为凹槽，形成腹缝线，最后腹缝线完全愈合。

X-ray was used to check the development of their left carpal bones and the adolescent height spurt status was evaluated according to X-ay pictures and based on Grave's index.

结果：青春期女性的身高突增高峰主要发生在乳房开始发育的同时，但在9岁及以后的无性发育个体中也有部分个体进人了高峰期。

They have several meters of paleosol developed on the top of overbank silt, suggesting that the abandonment of each terrace due to river incision occurs during the transition from glacial to interglacial climates and there may be a link between the production of terraces and glacial-interglacial climatic cycles. However, it is not every glacial-interglacial transition during the last 1,240ka that terrace can form and preserve.

黄河各阶地河漫滩顶部都有一层古土壤发育表明黄河下切形成阶地发生在古土壤开始发育的冰期向间冰期的过度阶段，但是并非1，240ka以来的每次冰期—间冰期的气候交替都能引起黄河下切形成阶地。

Firstly,~(40)Ar/~(39)Ar age clusters of Ma reveal the fast cooling of eastern Himalaya Syntaxis since middle Pliocene. Secondly, the difference of ~(40)Ar/~(39)Ar age clusters between the west and east slope section of DuoxiongLa is the result of a titling structure, which strikes NE at the west side of Namjag-Barwa– NamuLa– DuoxiongLa, and which has been functioning since 4.0~2.2 Ma under the drive of both climatic and tectonic powers.

一方面，大量小于3 Ma的~(40)Ar/~(39)Ar年龄表明东构造结的大规模隆升开始于上新世中期，另一方面，多雄拉东坡与西坡~(40)Ar/~(39)Ar年龄的差异是由于南迦巴瓦—那木拉—多雄拉峰顶连线以西发育的北东走向掀斜构造所引起的差异性抬升和剥蚀所造成，该掀斜构造开始发育于4.0～2.2 Ma期间，且一直活动到现在，其动力源自气候与构造的共同作用。

Mysoin, the protein that allows muscle to contract, was known to be essential for the beginning of development in certain amoebas, but its importance in subsequent stages was unknown.

肌浆球蛋白是一种促使肌肉结合在一起的蛋白，众所周知，这种蛋白是特定变形虫开始发育的必要物质，但是它在后期发育阶段的重要性并不为人所知。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。