自行车运动之后5大不宜

Sam2008

还好都没有

李嘉南

学习了  剧烈运动之后要非常注意  24个小时内免疫力会下降很多

Different species of goose, its shape, size, color, etc., while not identical, but its structure is the same, that is, from the shell, inner shell membrane, albumen, egg yolk, lace, gas chamber, ovules into blastoderm 7 parts.
First, the shell
The outermost layer of the shell is oval, a small amount of calcium carbonate and other minerals and organic matter composition. Packages and egg plays a hard shell to protect the contents and so on: the general goose eggshell thickness of 0.45 to 0.62 mm. Sichuan goose eggshell thickness of 0.55 mm, sharp end than the blunt end of a little thick, its thickness by genetic, seasonal, nutritional, physiological and other factors. Eggshell by the sponge layer, papillary layer film composition and shell, shell thickness differences mainly in the sponge layer, the thickness of the papillary layer are basically the same. The outer surface of the shell layer of plastic shell film, plays against microbial invasion and the role of evaporation inside the eggs, egg shell has many tiny pores, pore size there are some differences, the number of the blunt end up , is the embryo inside the egg gas exchange and evaporation channels. Sichuan goose egg shell for the entire weight of 13.5%
Second, the shell membrane
There are two layers inside and outside the shell membrane, shell membrane close to the shell, surrounded by inner shell membrane protein, inner membrane than about twice the shell thickness. Two layers of shell membrane has pores, small pores within the shell membrane to prevent outside intrusion and microbial limit evaporation from the role.
source:Xinchang egg incubator  www.incubatorforegg.com

国安是冠军

第五个我还真的要注意了

再见浪花

{:soso__14347937040236606360_1:}多谢楼主！学习了！