初经

Its prototype can be seen in educator Johann Heinrich Pestalozzi's idea at the end of 19th century and the beginning of 20th century. Later on, due to the combined effect of many factors, such as other educators'(e.g. Georg Kerschensteiner,etc) practice and development of the theory, the evolution of Vocational Education System in the 20th century, the pressure of economic development in German, the need of f ...更多 lexible management in modern enterprises, the difficult situation of "Dual System", and the training and internship positions shortage because of the global economy and population change,"Work Process Oriented Theory" came into being in German.

在18世纪末19世纪初教育家裴斯泰洛奇的思想中即可见其端倪，后经过凯兴斯泰纳等教育家的实践与发展，并经20世纪职业学校课程体系的反复实践，到了20世纪90年代，由于德国经济发展的压力、现代企业从刚性管理到柔性管理的体制演变、"双元制"职业教育的困境以及经济全球化和人口变化带来的培训实习岗位短缺等诸多现实因素的共同作用，在德国诞生了工作过程导向思想。

In order to evaluate the capability of lignin degradation and pitch elimination from Masson pine chips by nature white-rot fungi, 20 white-rot fungus strains were obtained by petri dishes screening and petri dishes color-reaction screening. One G strain with the lowest Mycel/Col value was then inoculated onto the surface of Masson pine chip, and the degradation rates of lignin and pitch were measured after 3, 5, 7, 9 days, respectively.

为评价从野外筛选得到的白腐菌对造纸原料马尾松的木素降解和树脂脱除能力，将带菌样本经室内平板初筛及平板变色反应复筛，得到了20株纯白腐菌菌株，并对变色系数最小的一株菌株G进行松木片固体接种试验，测定3、5、7、9天后松木片的木素、树脂降解情况。

In order to evaluate the capability of lignin degradation and pitch elimination from Masson pine chips by nature white-rot fungi,20 white-rot fungus strains were obtained by petri dishes screening and petri dishes color-reaction screening.

为评价从野外筛选得到的白腐菌对造纸原料马尾松的木素降解和树脂脱除能力，将带菌样本经室内平板初筛及平板变色反应复筛，得到了20株纯白腐菌菌株，并对变色系数最小的一株菌株G进行松木片固体接种试验，测定3、5、7、9天后松木片的木素、树脂降解情况。

After the statistics, to the beginning of 1990s, the planetoid which registers had more than 4000, although but also some multitudinous planetoids (had more than 50 ten thousand according to record) already to discover, waited for actually further confirmed.

经统计，到20世纪90年代初，已登记在册的小行星就有4000多颗，还有众多的小行星（据记载有50多万颗）虽已经发现，却有待进一步证实。

Most primipara will be between 36 to 38 weeks felt the change, but through the maternal (non-first child) is uncertain.

多数的初产妇会在36～38周之间感受到这个变化，而经产妇则不一定。

Porcine parvovirus and pseudorabies virus are the main causes of infectious reproductive failure in swine.

猪细小病毒和伪狂犬病毒均是引起母猪繁殖障碍的主要病原，猪细小病毒的危害主要表现为，导致初产母猪或血清学阴性的经产母猪发生繁殖障碍，其它年。。。

The method reached classics puerpera to undertake investigating to 379 primiparas March 2008 in January 2007 to my courtyard.

方法对我院2007年1月至2008年3月的379例初产妇及经产妇进行调查。

Different biological and ecological characteristics, virulence, sporulation, conidia bourgeon, Protea-Bse activity leve and colony growth of 6 strains of Beauveria bassiana were measured respectively. The results were calculated by grey relational analysis and the optimum sequence was built from the professional comparison of each strain's characteristics. Two strain's have a potential of appling in mass production, BD-B015 and BD-B038 were abtained. The revisory mortality to Laphygma exigua Hubner were 88.33% and 86.70%.The infected rate were 86.67% and 85.27%.

测定初筛获得的6个球孢白僵菌菌株的毒力、产孢量、萌发率、胞外蛋白酶活性及菌株生长速度等多个生物、生态学指标，从专业角度构建最优序列，经灰色分析和不同菌株毒力效价显著性比较，筛选出了两株具有较大生产潜力的优良菌株BD-B015和BD-B038，对甜菜夜蛾的校正死亡率分别为88.33%和86.70%，僵虫率分别为86.67%和85.27%。

ABSTRACT The theory of valuation originated from the thought of Irving Fisher at the beginning of this century.

企业价值与价值增长理论源于本世纪初艾尔文·费雪的价值评估理论，经莫迪利安尼－米勒、Black、Scholes等人的完善和发展，80年代。。。

In this paper, an efficient and easy biological screening method based on the sensitivity to lovastatin of Neurospora crassa was built to deal with the mutant strain rudely by UV mutation. A high-level strain was screened in the shaking flask culture incorporating with TLC and HPLC. A comparison between this two methods also was originally discussed while identifying dyeing using bromophenol blue as the better treatment of TLC, and offering a kind of simple, practical, fast and economical determination qualitatively and quantitatively.

本文有鉴于此，通过紫外诱变处理，并基于粗糙脉孢酶对洛伐他汀的生物敏感性，对诱变菌株进行了初筛；同时，采用摇瓶培养，结合TLC和HPLC的分析方法，复筛出一株高产菌株；对复筛过程两种分析方法分别进行了初步探讨，比较其优劣，确定TLC法经溴酚兰显色剂显色处理为较佳方式；从而，建立了一套简单、实用、快速、经济且有效的洛伐他汀生产菌诱变筛选方法。

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。