Reptiles have placodes too. But in a reptile embryo each placode switches on genes that cause only the skin cells on the back edge of the placode to grow, eventually forming scales.
爬行动物身上同样存在基板，但在胚胎阶段时，它们只会触发基板后延的皮肤细胞基因进行增殖，并最终形成鳞片。
When she got back, things were starting to get better for her, Jane said. She visited Jane at college, forming the best and last memories that Jane has of her only sibling.
Jane说，Mary回来的时候，病情开始有了好转，还去Jane的学校看望了姐姐,可是这也成为了Jane拥有的最美好也是最后的记忆。
The opposite is also true: When there is more ice it reflects more solar energy back into space, and cools the Arctic down, which leads to more sea ice forming.
相反也是如此：当冰雪较多时，它就把更多的太阳能反射回太空，使北极变冷，从而形成更多的海冰。
Back during the last Internet bubble, Sky Dayton, founder of Earthlink, took some exploratory steps toward forming a virtual, build-to-order car manufacturer he called Flint Inc.
在上一次互联网泡沫期间，地球连线(Earthlink)的创始人斯凯·戴顿就进行了这方面的探索，试图建立一个虚拟的、按单定制的汽车生产公司，他为这家公司起名为Flint Inc .。
Fatigue life is able to increase more than 90 % as using technique that makes bead forming on the back side.
采用背面成形技术使膜盒的疲劳寿命提高90%以上。
Workpiece's spring-back is considered in this paper, deformation's history is assured in the next pass, and then square rectangle tube in continue roll forming process lay a foundation.
文中考虑了轧件的弹复，保证了下一道次变形历史的延续，从而为真实模拟方矩形连续辊弯成形过程奠定基础。
Add a fixed roll based on the single back rest system, forming a double back rest system, then analysis.
并在此单后梁系统基础上，加设一固定后梁，组成双后梁系统，对其进行分析计算。
As is planned, we are to organize ourselves into groups, forming action teams and back-up crews, each reporting to our designated sites.
我们将按计划分成小组，组成行动队和后援队，并各自前往指定地点。
The spring back is an inevitable question in the bush forming process, which has great influence on the forming quality of bushes.
回弹是轴套成形过程中一个无法避免的问题，对于轴套的成形质量有至关重要的影响。
The forming of flank of conical twist drill was studied and mathematical model of twist drill tine was founded in order to get formula of back clearance.
研究了锥面麻花钻后刀面的成型，建立了钻尖的数学模型，由此确定了后角的计算公式。
This paper presents a stress analysis and selection of processing parameter in cold-pressing forming process for manufacturing the automotive rear brake back plates.
介绍了汽车后制动底板冷压成形工艺的应力分析及工艺参数的确定。
The proposed method is used with FE simulations, and the example of spring-back compensation demonstrates that it is efficient, accurate and robust for auto panel forming process optimization.
该方法无须求解函数灵敏度，在保证拟合精度的前提下，能光滑响应并最大程度减少精确分析计算量，分析前翼子板回弹补偿优化设计实例，证明其具有很高的精度和鲁棒性。
Analyzed the structure characteristics and forming process of the stiffening plate of front-carling. According to the spring-back problem, proposed the rectification method.
分析了前纵梁后加强板的结构特点和成形工艺，针对回弹问题，提出了整改方法。
With the change of forming technique, the steel for internal nut of back wheel has been developed. Discussiof the selection of the steel and the benefit with the result has been showed.
阐述了为适应成形工艺改变而开发的后车轮内螺母用钢的性能与应用情况，并讨论了车轮内螺母用钢的选择及由此而产生的效益。
The resistance of metal plastic forming was introduced in this paper. The resistance forming could be divided into back pressure resistance forming and structural resistance forming.
综述了金属塑性成形中的阻尼，将阻尼成形分为背压阻尼成形和结构阻尼成形。
The finite element analysis of the compound bending forming process is done for knives of the template. The spring back in the forming procedure is investigated.
运用有限元方法分析了模切板刀片的复合弯曲成形，对成形过程中的回弹进行了研究。
On the eastern side and the western side of the courtyard, there are five wing-rooms with side buildings at their back, each forming a small-sized building complex.
庭院东西，各有厢房五间，均为前出廊，七檩悬山式建筑。西厢之后，又有配房，各自组成一小型建筑群。孔府二门，三间，门前两侧各置一座雕刻精致的上马石。
The hoop can be sleeved at the outer side of the opening formed at the front casing and the back casing, with a top end forming a slightly contracting opening.
包括由塑料制成的前壳体、后壳体和箍儿，箍儿可套在前壳体和后壳体形成的开口处外侧，其上端形成有稍为收缩 的开口。
Through the actual verification, the predictions are satisfied with forming and spring-back of compensation parts, to improve the forming precision of parts.
经实际加工验证，该预测值能够较好地补偿零件成形回弹，提高零件成形精度。
When water drops over a obstacle, it curls back on itself, forming a strong upstream current which may be capable of holding a boat or swimmer.
当水跌过障碍物，它会自己回卷，形成一股强劲的可以困住船或者游泳者的回流。
The spring-back mechanism in the drop bend-forming of automotive glass is introduced, and the finite element model is established.
介绍了汽车玻璃落模弯曲成形中回弹的机制，建立了有限元模型。
Smalling is likely to continue at right-back with Jonny Evans and Phil Jones forming a partnership in the middle.
斯莫林可能得继续打右后卫，而琼斯和埃文斯打中卫。
How to effectively control the spring-back and guarantee the quality have always been the keys and difficulties in stamping forming.
如何有效的控制回弹并保证零件成形质量一直都是研究的重点和难点。
The forming of the Yi song can trace back to the Liu Song period of the Southern Dynasties or earlier.
倚歌产生的时代可上溯至刘宋时代或者更早；
The spring-back is not only one of the most common defects in the sheet metal forming, but also one of the hardest to control deficiencies, especially in the bending process.
回弹是薄板冲压成形中最常见的缺陷之一，也是最难控制的缺陷，尤其是在弯曲成形过程中。
A kind of new forming technique to manufacture the back spring seat was proposed, called drawing-multi-step sinking with the cylindrical-forming process.
提出了一种生产后簧座的工艺方法：拉深—多步缩口—成形。
It proved the ability to simulate material flow, strain, stress, forming load as well as spring back.
它具有分析材料流动，应变，应力及冲压负载的功能。
With the focusing lens and the medium pool replacing the back mirror, auto cavity-forming and laser output are realized.
用聚焦透镜和介质池取代激光器的后镜，可自动成腔输出激光。
With the focusing lens and the medium pool replacing the back mirror, auto cavity-forming and laser output are realized.
用聚焦透镜和介质池取代激光器的后镜，可自动成腔输出激光。
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