瓶颈

At present, three parts of the core assemblies, including the electric motors, controllers and bodyworks, have been mature both in the theory and the technology, but other two major ones such as storage cells and chargers cannot satisfy the requirement of electric cars.

目前，电动车核心部件中的电动机、控制器和车体三大部件在理论和技术上已较为成熟，而另两大部件蓄电池、充电器的发展还不能满足电动车的要求，有一些理论和技术问题还有待攻关，现已成为影响电动交通工具发展的瓶颈。

At first glance Jack seemed fair enough with his curly hair and quick laugh, but for a small man he carried some weight in the haunch and his smile disclosed buckteeth, not pronounced enough to let him eat popcorn out of the neck of a jug, but noticeable.

乍一看，Jack长得很好看，一头卷发，爱笑，对一个年青人来说腰粗了点，一笑就露出口虎牙，到也不是长得足以让他能从一个瓶颈里吃爆米花，不过很惹眼。

The resolution of each visible terrain block could be calculated adaptively according to the viewpoint location and the network bandwidth during the interactive rendering. Utilizing the coherences between frames, the bottleneck of massive data remote transmission was solved effectively.

在交互渲染过程中充分利用帧间相关性，根据视点位置和网络带宽等相关参数对相应压缩码流进行多分辨率自适应控制传输，有效解决了海量数据远程传输的带宽瓶颈。

Other bottlenecks occurred when a few individuals migrated out of Africa around 60,000 years ago and colonised other regions.

当一簇人在60，000年前走出非洲移居其他地区的时候，人类也曾面临其他瓶颈。

In the 7 years full of exploring and bottleneck of progress,the marriage between TV and movie has had a history of 7 years,they become strategical copartners from prevevient foes.

在这充满探索和发展瓶颈的七个年头里，电视和电影之间的联姻也走过了七年，曾经的冤家变成了战略型的合作伙伴。

In recent years, with the fast development of economic and social, the nature system conditions of Chaohu basin become much worse, and the water resources situation has a doomy future, whtch becomes the bottleneck of Chaohu basin economic anc social development, and makes this area can not form comfortable condition to live in andan not form health and safely climate to invest capital in. Its bad effect seriously restrts the sustainable development of economy and society in this basin.

近年来，经济、社会的快速发展，使得巢湖流域这一自然系统的环境日益恶化，水资源的形势愈发严峻，已经成为巢湖流域经济、社会发展的环境瓶颈，它使得该地区不能形成良好的人居环境，也不能形成健康、安全的投资环境，严重影响和制约了流域内经济、社会中可持续发展。

While contributing an awful lot to our nation's industrialization and modernization, die fanners have never enjoyed its fruit.

至20世纪70年代末，农村的现代化问题已成为我国现代化发展的瓶颈。

One boy 's hand put into a bottle with fill filberts up .and try him best to get filberts ,but when he try to pull out his hand,finding do it by hardly.so for the bottle-neck is so narrow.it storp from through by the big filberts.

一个男孩把手伸到一个装满榛子的瓶子里，尽可能多地抓了满满一把榛子。但当他再试着把手拔出时，却发现没办法做到了。因为瓶颈太窄了，无法容许这么一大把榛果通过。

As an example, an index method is applied to analyze a float valve tower to determine the variation range of some uncertain parameters.

以浮阀塔板为例，说明如何采用顶点法求解化工装置弹性系数，进行弹性分析，确定不确定参数真实可行的变化范围，比较不同设计的弹性大小；并找出瓶颈所在，为装置的扩产改造提供理论依据。

This paper, firstly, based on the main technology characters in the punch forming of our lorry, puts forward a question on the bottleneck of key technology during the punch forming of medium plate.

本文首先叙述我国铁路货车冲压成形的主要技术特点，指出了中厚板冲压成形关键技术所存在的瓶颈问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。