- 重点词汇
- were be的过去时复数和第二人称单数形式;有时代替 was,用于条件从句、动词 wish 之后等;
- thispron.这，这个;这事，这人;这时;下面所说的事;
- constructedv.修建( construct的过去式和过去分词 );构成;组成;（按照数学规则）编制;
- papern.纸;报纸;材料;壁纸;论文;试卷;文件;
- varyingv.变化( vary的现在分词 );[生物学]变异;相应变化;呈现不同;
- percolationn.过滤，浸透;渗滤;渗漏;
- inprep. 在里面;在(某范围或空间内的)某一点;在(某物的形体或范围)中;在…内;在…中;进入
- occupyv.居住;占用;占领;担任;使忙碌;占…;
- 相关例句
文章从渗流力学基本理论出发,建立了低渗透气藏压裂井三项式产能方程.
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The main reason for this seems to be the slow percolation rate of the local soil.
主要原因似乎是当地土壤的渗透率比较低.
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Percolation structure of concrete was tested and characterized by AC impedance spectroscopy.
混凝土的渗流结构可以用交流阻抗谱方法来测定和表征.
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A percolation model for closed carbonate reservoir with natural fractures was built.
建立了天然裂缝性碳酸盐岩封闭油藏渗流模型.
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ObjectiveTo study the percolation extraction process of Rabdosia rubescens by orthogonal texts.
目的采用正交试实验法研究冬凌草的渗漉提取工艺.
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The results achieved by using the Archie formula and the percolation theory are in good accordance.
根据阿尔奇公式的分析结果同逾渗理论结果一致.
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A healthy tooth percussed with a metal instrument gives a metallic sound.
用金属器械对健康的牙齿作叩诊则发出金属声.
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There are the usual strings, woodwind, brass and percussion of a western orchestra.
有常用的弦乐器 、 木管乐器 、 铜管和打击乐器.
休闲英语会话
The orchestra of traditional opera consists of percussion , stringed and wind instruments.
中国古代戏曲伴奏需要文场和武场.
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在身声的演出中, 每位团员都用肢体动作 、 打击乐器和声音来探索节奏.
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A symphony orchestra is composed of a variety of brass, woodwind, percussion and instruments.
交响乐队是由许多不同的铜乐器, 木管乐器, 打击乐器,弦乐器组成.
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