改进

"About 700,000 years ago, the first rough hand ax appeared; it was later refined and used with other tools in the Acheulean industry."

"大约700，000年前，第一支粗糙的手斧出现，后来在阿舍尔文化期工艺时期加以改进并与其它工具一起使用。"

Earlier work hinted that improvements in tool technology around 1.4 million years ago—namely, the advent of the Acheulean hand ax—allowed hominids to leave Africa.

先前的研究结论给人的印象是，大约140万年前，制作工具的技术改进了，人类因而能够离开非洲。

To achieve these ends of continuous learning, we need to re-establish contact with our bodies, our total sensing instrument; develop our basic design instincts to a higher level; refine our five senses and use our intuition; train the many powers of the mind such as memory, recognition, conception and imagination; develop our powers of visualization, and tap the inner power of inspiration.

连续不断地学习是为了耍达到这麼多的目标，我们需要和身体上用来感觉的仪器再建立起良好互动关系；使我们在基础设计上的本能可以发挥更高的境界；将我们五种不同的生理感觉和直觉上的预知能力再次地精练改进；再磨练我们心灵思维上与生俱来的许多能力，像是：记忆力、认知力、构思力、以及想像力；而且再度地发展我们在视觉想像空间上的能力，轻轻地敲开隐藏在潜意识里的灵感能力。

The short-term development goal of Vietnamese swimmer aging from 12 to 14 is'ameliorate the material conditions of swimming centers, promote scientific training, improve physical fitness and technique, obtain excellent achievement at every age stage swimming events in southeast Asia, rank 2nd or 3rd in 2010'.

越南12-14岁少年游泳运动员的近期发展目标为："在全国各个游泳中心改善物质条件，推进科学训练，改进运动员的体能水平和技术水平，在东南亚各年龄组游泳比赛中，逐步争取比较多的奖牌数量或高的名次，2010年总数列第二或第三名"。

The traditional technology of preparing walnut protein with alkaline extraction and acid precipitation was improved to increase the purity of walnut protein.

对传统的碱溶酸沉法制备核桃蛋白的工艺进行了改进，以提高核桃蛋白的纯度。

The effects of the concentration of oxalic acid and temperature on this process were also studied.

目前，草酸电还原法虽已实现工业化生产，但国内对该工艺改进的研究仍在不断地进行和深入[1~3]。

But they have acknowledged that and told me that it was going to change.

但是，他们（nba必须意识到问题的存在，并加以改进。

Therefore,the application of space-time adaptive optimization method to active acoustic homing torpedo is studied, and the conventional method is improved by restraining the side lobe reverbereration and main lobe reverberation with self Doppler null method.

在此基础上研究了空时最优处理方法在主动声自导鱼雷中的应用，通过压低旁瓣减少旁瓣区混响和自身多普勒零陷抑制主瓣混响等措施对传统方法进行了改进。

Never stop testing different keywords and ads to improve your conversion ratio and lower your customer acquisition cost.

通过对不同版本内容的比较来改进和提高你的潜在客户的转化比例，进而降低你的客户取得成本。

As you can see though, there are improvements right across the board.

如你所见，这里的会议桌上一直有进步改进的权利。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。