They sustained this dense settlement through raised field agriculture, a technique that improved drainage and recycled nutrients in the poor tropical soil.
高地农业技术可以改善贫瘠的热带土壤的排水和养分的循环利用。
But some scientists in recent months have raised questions about the field.
但是有些科学家最近几个月中就此提出疑问。
"I believe the work has raised a lot of interesting questions and that a new field of investigation has been opened up," he says.
“我相信这项工作已经衍生出了很多有趣的问题，而且一个新的研究领域已为我们敞开大门。”他说。
Finally, the recent Global Cooling User Community meeting raised a prioritized list of issues seen by not only operators, but also system administrators, managers, and field users.
最后，在最近的GlobalCoolingUserCommunity会议上提出了一个按优先顺序排列的问题列表，这不仅是操作人员，而且系统管理员，经理，以及区域用户都可以看到。
As an example, an XML event would be raised when a user changes the text in an XForms-based text entry field.
比如，用户改变基于XForms的文本输入字段中的文本时就会引发一个XML事件。
With the knowledge economy time coming around, the knowledge economy had a great influence on all respects of the economic field, and raised a new claim to finance management.
随着知识经济时代的日益接近，知识经济对经济领域的各个方面都产生了深远影响，同时对财务管理提出了新的要求。
The raised septic field in front of the house, required due to flood zone restrictions, is planted with a field of lavender, thereby hiding its utilitarian function.
房子前面的敏感地块，由于受洪水区域限制，种植了一片熏衣草，从而隐藏了它的实用功能。
A small volume of the separator liquid is raised to field separator test conditions and flashed to field stock-tank test conditions.
使少量分离液达到油田分离测试条件，并经闪蒸后达到油田储罐测试条件。
Field experiments have proved that the reliability of the electromagnetic brake has been greatly raised.
现场试验证明，电磁制动的可靠性大大提高。
When a player dies, they can revive at a nearby mana fountain or be raised by a cleric in the field.
当玩家死亡时，他们将会在附近的力量之泉中复活或者在战场上由牧师进行救活。
The principle of domestic microwave monitoring carbon system was introduced emphatically and some constructive Suggestions in the field of its practical application to utility boiler has been raised.
介绍了国产微波测碳监测系统的原理，并就其在电站锅炉上实际应用方面，提出了一些建设性的意见。
About theoretic calculation for lightning electromagnetic field, two analytical methods are raised, which are dipole method in time domain and time-varying field method in frequency domain.
在雷电电磁场的理论计算方面，提出了两种方法，即时域中的偶极子方法和频域中的时变场方法。
Since the new control model has been put into use in the work field, its effect has been improved a lot, its control accuracy raised, and tapping time for wire rod reduced.
新的控制模型在现场投入应用后，效果良好，提高了控制精度，减少了线材的出钢时间。
In recent 10-20 years, SF6 gas has been widely applied in the field of HV electrical apparatus, thus the technical performance and entire quality of these equipment are greatly raised.
近一、二十年来，SF_6气体在高压电器领域得到了广泛应用，从而大大提高了这些设备的技术性能和整体质量。
It is raised that, at the beginning of the filling operation or when it is nearly fully filled, the undulating change of the field should be one of the reasons which may cause incentive ESD.
提出了料仓刚刚灌充时或者接近灌满时，电场的起伏变化，可能是诱发危害性静电放电的原因之一。
Based on these, one newly experiment prepare plan for generation of multimode squeezed state light field is raised.
并在上述研究的基础上，提出了一种制备多模叠加光场并使该光场产生压缩效应的实验方案。
The main facilities, process flow and the characteristics of this field are introduced. Some Suggestions for the operation of this field are raised by author in this paper as well.
本文对油田的主要设施、工艺流程和油田特点作了介绍，并对油田操作问题提出几点建议。
One of the pioneering books in the field had a raised fist on the cover, and it was called "Computer Lib."
在早期的一本书上的封面有一个上扬的拳头，他们称之为《计算机解放》。
Recently, with progress of the research in this field, it has raised extensive attentions to the application of HSP in etiology, therapy and prevention of ophthalmopathy.
近来随着对热休克蛋白研究的不断深入，HSP在眼病的发病机制、防治方面的作用已受到广泛关注。
By using the high-pressure pulse electric field, the method has less heat energy in the process of breaking, low raised temperature of a breaking target, and short breaking time.
利用高压脉冲电场破壁，在破壁过程中产热少、破壁对象升温小、破壁时间短。
It has been raised a new method, electrocoagulation in disposition of gas-field wastewater.
通过甲基橙模拟偶氮染料废水，考察了电絮凝法处理印染废水的效果。
It has been raised a new method, electrocoagulation in disposition of gas-field wastewater.
通过甲基橙模拟偶氮染料废水，考察了电絮凝法处理印染废水的效果。
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