在生物体外

Directed molecular evolution of enzyme, originated in the beginning of the nineties of the last century, was a new strategy of protein engineering, which could rapidly modify proteins for specific purpose through imitating externally natural evolutions, as well as it has arisen a revolution in biocatalyst field.

酶的分子定向进化是20世纪90年代初兴起的一种蛋白质工程的新策略，是一种在生物体外模拟自然进化过程的、具有一定目的性的快速改造蛋白质的方法。该方法引起了生物催化技术领域的又一次革命。

The objective of the present study is to evaluate the effect of the degree of cross linking with POC13 on in vitro digestibility of tapioca starch.

目前的研究目标就是如何确定在生物体外的木薯淀粉消化性与POC13耦合度的影响。

Mechanical environment, as a native survival one, is very complicated and constituted of many different kinds of forces, such as the forces in vitro or between tissues and cells, and the interactive intracellular stress during the process of formation and remodification of cytoskeletons. All these forces regulate bodies' developments and cellular differentiations, which is particularly obvious in bone tissues.

力学环境是自然赋予生命体的一种生存环境，在这个复杂的环境中，生物体外的力、生命运动过程中产生的体内各组织、细胞间的相互作用力及细胞骨架形成和变化时产生的细胞内张力交互作用，构成了一个力学系统，调节着生物体的生长发育和细胞分化，这一点表现在力对骨骼系统的作用上尤为明显。

It is shown in this paper that native ribonuclease and proinsulin can be nearly quantitatively formed catalyzed by PDI from a mixture of their S-sulfonated derivatives independent of the presence of each other.

我们研究了在体外PDI同时催化RNase和胰岛素原的S-磺酸型衍生物形成天然二硫键，结果表明，在合适的条件下，两者形成天然二硫键的产率互相不受影响，因此，我们推测PDI在生物体内可以同时催化多种蛋白质二硫键的形成。

As an amine and organic cation, agmatine also has much more targets in vivo like the NMDA receptor.

它作为一种阳离子胺类物质，除了咪唑啉受体外，在生物体内还存在多个作用靶点，NMDA受体是其中最重要的作用靶点之一。

From SPF wister rats were extracted from the femur BMSCs nestin cultivation, and third generation will BMSCs and join BMP - 2 after polylactic acid/Hydroxyapatite Poly (Lactid Hydroxyapatite/L - and PLLA/HA) composite material compound for in vitro cell culture, BMSCs MTT method in detecting the proliferation of biological material surface conditions, Scanning electron microscopy to observe its surface ultrastructure and cells in the growth of the material.

从SPF级wister大鼠股骨中提取BMSCs进行原代和传代培养，将第三代BMSCs与加入BMP-2前后的聚乳酸/羟基磷灰石（Poly L-Lactid /Hydroxyapatite， PLLA/HA）复合材料复合进行体外细胞培养，MTT法检测BMSCs在生物材料表面的增殖情况；SEM观察其表面超微机构及细胞在材料上的生长情况。

Absorption means that gold comes inside organisms and is combined with the mercapto group of protein, whereras adsorption means that gold is ad-sorped outside organisms by aminoacid secreted by cell walls.

吸附是指金被细胞壁分泌的氨基酸等有机物吸附在生物体外；吸收是指金进入生物体内，可能与蛋白质的巯基相结合。

Hence, HK has ability on attenuating renal interstitial fibrosis in

因此在生物体外的实验，和厚朴酚是具有减缓肾纤维化特徵的效果。

In the early life evolution, the evolution of ecosystem mainly exhibited the development what was from passive accepters to active competitors in life demands for environment factors, from dependence on to reform in the environment, from two-dimension to three-dimension in the spatial distribution, and from outside to inside of organism in the style of energy transformation.

在生命演化的早期，生态系统的演化主要表现为生物从被动地接受环境因子到对环境因子需求的竞争，从依赖环境到参与对环境的改造，生物的环境空间分布从二维到三维，生物的能量传递方式从生物体外到体内。

In vitro Literally ' in glass '; describing experiments or techniques performed in laboratory apparatus rather than in the living organism.

体外试验：指在实验仪器中进行的试验，而不是在生物体内发生的。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。