To test the theory, the scientists recreated what ancient tool makers might have done by heating a pile of silcrete stone in a fire pit.
为了检验这个理论，科学家们通过在一个火坑里加热砾岩石，重现了远古工匠们可能的做法。
A study commissioned by Norcal found that 70% of the material going into the pit could have been recycled.
一份由诺克尔委托进行的调查表明，在将要进入堆填的废品中，有百分之七十的部分本是可回收的。
And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.
他开了无底坑，便有烟从坑里往上冒，好像大火炉的烟。日头和天空，都因这烟昏暗了。
This called on rigid pit stop timetables to be abandoned and replaced by a looser system of pit stop ‘windows’, with a number of laps on which a car can make its stop to gain best strategic advantage.
这使得严格的进站时间表变为一个更为宽泛的进站“窗口”，即在一定的圈数内，赛车可完成进站从而得到最佳的策略优势。
Instead, they commit their own capital to make markets - as the Chicago pit traders did - by Posting bids and offers on various exchanges.
相反，它们通过在众多交易所下买盘和卖盘，用自有资金做市——就像芝加哥场内交易商所做的那样。
The acid water in coal pit can be well controlled by adding calcium carbonate and lime.
阐述通过添加碳酸钙和石灰，可使酸性采煤坑水得到很好治理。
For open spread foundation, the pit is excavated by excavators for earth work with manpower to trim the side slope and build the ditch on top of base pit.
明挖扩大基础基坑开挖时，土方采用挖掘机开挖，并由人工配合进行边坡修理、基坑顶面排水沟的修建等辅助工作。
By the practical cases, the application of deep mixing cement pile in foundation pit supporting is discussed in order to supply a economic, reasonable, safe reliable plan for foundation pit execution.
通过工程实例，探讨了深层水泥搅拌桩在基坑支护工程中的应用，为基坑开挖施工提供一个既经济合理又安全可靠的支护方案。
Other areas are to lose aid so that money can be reallocated to towns devastated by pit closures.
将不再资助其他地区，以 便资金可以重新分配给饱受矿井关闭影响的城镇。
The work principle of inclined pipe and setting device is analyzed, the feasibility in reforming sludge pit by shallow layer settling technology is approached.
分析了斜管沉淀装置的工作原理，探讨了应用浅层沉淀技术改造捞坑的可行性。
By reducing the permeability of soil at the bottom of pit and selecting optimal dewatering depth, the settlement of ground surface can be well controlled.
采用降低坑底土层渗透性的措施和选择最佳的降水深度能有效地控制坑外地表的沉降。
The paper introduces the way to calculate the pit elevation of borrow pits by computer.
介绍一种运用计算机程序预求大堤所对应取土坑坑底高程的方法。
Currently the asphalt concrete pavement pit slots and crack are patched by heating asphalt mixtures mostly and needs higher temperature.
目前对沥青混凝土路面坑槽、裂缝等病害的修补多采用热拌沥青混合料的形式，温度要求较高。
A large headsaw for cutting logs, operated jointly by a person standing above the log and another in a pit underneath.
双人竖拉大锯一种锯木头的大锯，一人站在木头上，一人站在坑内一起拉锯。
In the design of cantilever pile cluster bracing structure the calculation of its horizontal displacement is discussed by taking the design of certain foundation pit bracing as an example.
本文以某基坑支护工程设计为例，讨论了悬臂式桩排支护结构设计中支护结构水平位移计算问题，并提出了减小支护结构水平位移的构造设计措施。
The paper provides the key factors to control the pit construction by restricting heave of the bottom soil and minimizing tunnel displacement.
文章阐述了如何通过控制基坑施工主要影响参数，进而限制坑底土体隆起，减小隧道位移。
The paper expounds the significance of optimizing design on foundation pit supporting by a certain engineering case study in Wuhan.
通过对武汉某一工程实例的分析，阐述了深基坑支护优化设计的重要性。
The computation method of overloading of deep foundation pit slope is studied and used by example in project. The better economic performance is acquired.
本文提出了深基坑边坡超载计算方法的建议，并将该方法应用于工程实例，获得了较好的经济效益。
The whole retaining system is divided into some corresponding subsystems, and the optimum analysis procedure of retaining system for deep foundation pit is designed by virtue of the optimum theory.
对整个支护系统划分了相应的研究层次，从系统优化的理论出发，编制了深基坑支护系统优化分析程序。
How to predict the pit growth behavior by introducing pit growth kinetics is summarized, and some properties of passive film, such as semi conductive and electronic properties, are also discussed.
对如何通过研究铝的点蚀扩展动力学来预测点蚀扩展行为，同时对钝化膜的半导体性能、电子性能进行了概述。
Much effect will be caused by pit foundation excavation upon adjacent buildings, which may lead to a change in the stress and strain of adjacent building foundation.
基坑开挖对临近建筑物会产生较大影响，导致临近建筑物基础应力和变形发生变化。
Foundation pit is affected by some factors and it also is the key problem of geotechnical engineering.
基坑工程由于受多种因素的影响，目前已成为岩土工程中的重点和难点。
It indicates that to research on soil moisture movement under the condition of water storage pit irrigation by using this model is feasible.
说明利用该数学模型研究蓄水坑灌条件下的土壤水分运动状况是可行的。
The article introduces the design and construction technology of side slope soil supporting of a deep foundation pit by gunning anchorage method, so as to ensure stability of the slope.
文章介绍了深基坑采用喷锚对边坡土体进行支护的设计与施工技术，保证边坡的稳定。
Wall cutting and unloading is a task of top priority of comprehensive harness in the north slope of Jinduicheng open pit stope. The vibration by blasting influenced the stability of slope.
削坡减载是露天采场北部边帮综合治理的当务之急，在边坡上进行爆破作业产生震动，对边坡稳定有一定影响。
Usually, the settlements of adjacent ground and building are caused by both groundwater lowering and the deformation of pit wall.
一般地，基坑邻域内的地面沉降是地下水位降低和基坑支护结构水平位移等多种因素耦合作用的结果。
Alas, the text explains that these etched details have been more or less worn away by time. We are left with an odd and possibly fictional story: what we see, after all, is a plain old fruit pit.
文字解释说这些蚀刻的细节多多少少已被时间磨损，只留给我们怪异似小说情节的故事：毕竟我们看到的，只是一个普通的旧果核。
The pit initiation process on commercially pure titanium in bromide solution was investigated by means of surface analysis.
本工作应用表面分析技术研究了工业纯钛在溴化钠溶液中的孔蚀引发过程。
The pit initiation process on commercially pure titanium in bromide solution was investigated by means of surface analysis.
本工作应用表面分析技术研究了工业纯钛在溴化钠溶液中的孔蚀引发过程。
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