查询词典 low-cost

And it is concluded that the No.4-2coal seam is a mid-reserve and low-permeable seam, with surrounding rocks having low enclosed system and high permeability. And the coal seam's gas content is low, while its quantity in the roof-sandstone which is the main source of coalface's gas emission is high . The quantitative index used to analyze gas content and gas emission amount are pointed out systematically. And gray association analysis method is adopted to search the main factors affecting coal-bed content and gas emission amount.

系统提出了分析影响煤层瓦斯含量与采面瓦斯涌出量大小的量化因素指标，并将灰色关联分析原理引入煤层瓦斯含量与瓦斯涌出量主控因素的研究中，筛选出了煤层顶板含油指数，顶板砂泥岩比、4-2号煤层顶板以上煤系厚度3个因素指标为影响4-2号煤层瓦斯含量的主控地质因素；煤层埋藏深度，煤层瓦斯含量，煤层顶板含油气砂岩厚度，煤层顶板含油强度及工作面回采进度5个因素为影响综采面瓦斯涌出量的主控因素。

In view of the study, there were large seasonal varying value of water resource carrying capacity and high probability of water scarce conjunctures during the low water season in the urban districts of Nanming and Yunyan, while there were small seasonal varying value of water resource carrying capacity and low probability of water scarce conjunctures during the low water season in the districts of Xifeng and Xiuwen county.

研究认为云岩、南明两城区水资源承载力的季节变化较大，在枯水季节容易发生水资源超载而引发的水危机；而修文、息烽等县水资源承载状态的季节性变化较小，在枯水季节的超载程度较轻。

The method is realized via the following steps: first to apply Isomap or LLE to get the embeddings of the original data set in the low dimensional space; then to obtain support vectors, which are the most significant and intrinsic data for the final classification result, by using support vector machine on these low dimensional embedding data; subsequently to get support vectors in the original high dimensional space based on the corresponding labels of the obtained low dimensional support vectors; finally to apply support vector machine again on these high dimensional support vectors to gain the final classification discriminant function.

数据挖掘是数据库知识发现中最重要的步骤之一，其目标是从获取的数据中高效准确地挖掘出我们所需要的信息。在实际应用中，数据往往呈现海量、高维、非线性等特性，这些特性给数据挖掘带来了很多问题，例如海量特性导致的计算效率低下问题、高维特性带来的维数灾难问题和非线性特性引起的线性模型失效问题等。幸运的是，实际中高维数据的属性之间往往存在一定的规律性和相关性，即实际数据经常存在着外在与内在两个维数。

Earlier combustor designs, such as the V-2 and Redstone, had low chamber pressure, low heat flux and low coolant pressure requirements, which could be satisfied by a simplified "double wall chamber" design with regenerative and film cooling.

较早前燃烧室的设计，如V型2和雷石东，低商会的压力，低热流和低冷却液压力的要求，这可能是满意的一种简化的&双壁商会&的设计与蓄热式和薄膜冷却。

The yield of neutral oil stocks (300℃~500℃) is 42.33%, the latent content of lube is about 90%, and they have the characteristics of low residue carbon, low sulfur content, light-colored, low acid number and less total and aromatic ring numbers.

中性油原料收率为42.33%，其中润滑油潜含量均在90%左右，且残炭值及硫含量不高，颜色浅、酸值小，结构族组成中总环数与芳香环数较小；光亮油原料收率为16.38%，其凝点较高，粘度较小，结构族组成中的烷基碳率较高。

EL products developed by a series of high-pressure-resistant, low-voltage high-frequency series, low-frequency series of low pressure, long-life series, can be made into any size and graphics, can be bent, paste and hoisted for the PDA, LCD, remote control, computer, Cell phones, payphones, instruments, watches and clocks, watches backlight, but also made instructions and traffic alerts, fire logo, advertising and decoration, and so on.

公司开发的EL产品有耐高压系列、低压高频系列、低压低频系列、长寿命系列，可制作成任何尺寸和图形，可弯曲、粘贴和悬挂，用于PDA、LCD、摇控器、电脑、手机、电话机、仪器仪表、钟表、手表背光，还可制成交通指示和警示、消防标识、广告、装饰等等。

Different low-spetral models are used to discuss the variations of the equilibrium states, with the results that the multiple features of equilibrium saltes depend heavily on the truncations of the spectra and the low-spectral model has obvious shortcomings in solving non-linear equations, suggesting that one has to be very careful to employ highly truncated low-sp...

结果显示，平衡态的特性严重地依赖于谱的截断，显示出低谱模式在求解非线性方程中的缺陷，说明用高截断的低谱模式去近似偏微分方程需要特别小心。

Some believe that China has entered a cycle of interest rate increases this year will likely have one or two increases in interest rates, home prices fell Canton, out of which part of the bubble, while the middle and low residential prices will remain stable; think there are experts, together with interest is very low, low prices as a result of Canton, after the rate hike, it is estimated that the future of Canton and the entire Pearl River Delta will experience restorative prices rose, but price increases will slow down the speed of expected growth rate for the five per cent.

有些人认为中国已经进入了一个周期的加息，今年将可能有一个或两个提高利率，房屋价格下跌了广东，其中的部分泡沫，而中低档住宅的价格将保持稳定；认为有专家，连同利息非常低，价格低是由于广东，加息后，据估计，未来的广东及整个珠江三角洲将经历恢复性上涨，但价格上涨将放慢的速度，预计增长率为百分之五。

This article analyzed characteristics and development trend of FCC gasoline in China, introduced the characters and plant effects of OCT-M and FRS FCC gasoline selective hydrodesulfurization process, especially the commercial application effect of the production of States Ⅲ and Ⅳ regulation gasoline. The commercial test results showed that OCT-M and FRS process were mature and credible, and had the characteristics of low pressure, low investment, convenient operation, low H2 consumption and high liquid yield. OCT-M and FRS process could offer refineries optional economical and flexible measure to produce States Ⅲ and Ⅳ regulation clean gasoline.

分析了我国FCC汽油的特点及发展趋势，介绍了OCT-M和FRS FCC汽油选择性加氢脱硫技术特点及中试效果，着重介绍了OCT-M和FRS FCC汽油选择性加氢脱硫技术生产国Ⅲ、国Ⅳ汽油的的工业应用效果，标定结果标明，OCT-M和FRS技术成熟可靠，具有装置压力等级低、投资省、操作方便、氢耗低、汽油产品收率高等特点，是我国炼厂生产国Ⅲ、国Ⅳ清洁汽油时可供选择的经济、灵活的解决方案。

In chapter four it is pointed out that the difficulty of measurement in low oxygen range was cause from the Nernst's law own. The reference electrode the surface state of electrolyte and "two layer electrolytes" were considered to find a way to raise the accuracy of low oxygen measurement. It had been found that the ZrO〓 solid electrolyte with a coating of ZrO〓 is appropriate for the determination of low oxygen range.

在第四章中首先分析了定氧技术在测量低氧含量时的困难，指出正是Nernst定律本身限制了低氧测量的准确性；然后分别从参比电极、电解质表面状态和&双电解质法&方面进行了研究，得到了适合于低氧含量测量的传感元件——带有ZrO〓涂层的ZrO〓固体电解质。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。