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To sum up, we first conclude that we can isolate mesenchymal stem cells from human fetal articular cartilage and they can be induced to differentiae into several cells under appropriate induction conditions. Anymore, they have their original tissue speciality. Therefore, we first report that mesenchymal stem cells of articular cartilage origin are superior to mesenchymal stem cells of bone marrow origin as seeding cells of cartilage tissue engineering and we provide a kind of new seeding cells of cartilage tissue engineering for the future clinic application.

综上所述，我们首次报道不仅可从人胚胎的关节软骨中获得间充质干细胞，而且软骨来源的间充质干细胞除具有骨髓来源的间充质干细胞的多向分化能力外，还具有其来源的软骨组织特异性，那么，其作为软骨组织工程的种子细胞要优于骨髓来源的间充质干细胞，从而首次提出了一种新型的软骨组织工程的种子细胞，对于未来的软骨组织工程的临床应用提供理论依据。

The boundary value problem for first-order differential equations with a parameter refers to the finite solution condition of equation which includes unknown quantity and its first-order derivative that not only relies on interval value but also relies on the parameter of the equation,which is always settled by fixed point theory or successive approximation method.

含一个参数的一阶微分方程边值问题是指：含有未知量及它的一阶导数的方程的定解条件不仅依赖于在区间端点的取值，而且依赖于方程中的参数。通常它用不动点定理或逐步逼近法来解决。

First, the digraph is used to represent the topology of multi-agent systems, and then, a first-order integrator model and a consensus convergence criterion of systems are established.

首先提出了能使用有向图表示的多智能体网络系统的拓扑结构，并根据该拓扑结构建立了网络系统的1阶数学模型和提出了多智能体网络系统一致收敛准则。

The second groove intersects the first groove set at an intersection angle such that the first optical surface (142) intersects the second optical surface (144) to define an orthogonal dihedral angle between the two surfaces.

第二沟槽组与第一沟槽组以一交角相交，以使第一光学表面（142）与第二光学表面（144）相交，而在两个表面之间限定一垂直二面角。

The Directress: AMI certified 0-3 teacher, the first batch of AMI international certified teacher, major in preschool education, First-grade Teacher, Beijing Dance Academy Teaching Certificate Education, Teaching Certificate Education.

主教老师具有AMI 蒙台梭利0-3岁职业教师国际认证，中国首批AMI国际认证教师，学前教育专业，一级教师。拥有北京舞蹈学院中国舞1、2、3级教师资格证书、婴幼儿科学识字教师资格证书。

Disciplinary Knight, pull 30 + yards into the fight, start to slow down the freedom to steal, steal basic win, steal security if we do not rely on, hold the first round of the two shield硬拼Austrian gas will be strong for the first round, the fastest of pressure Invincible, the second wake-up call to do after the disappearing trick.

惩戒骑士，拉30+码进战斗，开局减速，偷自由，偷得到基本赢，偷如果不保靠，撑两个盾第一轮硬拼，奥强气定给第一轮，最快化压无敌，第二波唤醒消失做后招。

Specifically, if the first disjoin of an or is true, the value of that disjoin becomes the value of the expression, without evaluating the rest; if the first conjoin of an and is false, its value likewise becomes the value of the whole expression.

具体地说，如果 or 表达式的左边部分为 true，那么就不用对其他部分进行求值了，这部分的值直接成为整个表达式的值了；如果 and 表达式的左边部分为 false，那么同样这部分的值也是直接成为整个表达式的值了。

First, download the software to copy it to a normal use of the computer under the root directory of C, and then there's the hard disk physical Bad Track 2 as the first hard drive mounted in the computer.

首先，将下载来的软件复制到一台正常使用的电脑的C盘根目录下，再把出现物理坏道的硬盘作为第2硬盘挂接在该电脑上。

Meets down, black area senior official black Germany graceful leads human interspace formation with "star tyrant" the machine interspace formation launched the strength disparately actually to fill for the first time changes the technique the outer space to attack the war, really was makes one expect with difficulty, humanity's first large-scale outside outer space combat, was not and own, also was not and in any fable alien flying saucer fleet perhaps other outside living matter, but was and own pains creation robot combat, thinks really was some play color and own makes fun of own frustrates the feeling.

接下来，黑区长官黑德曼所率领的人类星际编队与"星霸"的机器星际编队展开了首次实力悬殊却充满变术的太空对攻战，真是令人难以料到，人类的第一次大规模外太空作战，不是和自己，也不是和什么传说中的外星人飞碟舰队或是其他地外生命物质，而是和自己苦心创造的机器人作战，啊，想想真是有些戏剧色彩和自己捉弄自己的挫败感。

The first and second syllables constitute a disyllable group, and the first syllable changes according to the initial syllable of the disyllable group.

即第一、二两个音节构成一个两字组，第一个音节按两字组的前字变；第二、三两个音节构成一个两字组，第二个音节按两字组的前字变，第三个音节按两字组的后字变。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。