查询词典 low-grade

Based on the above cases, aiming at the actuality and practical cases of low-resistivity oil/gas reservoir log interpretation and evaluation in this thesis, beginning with analysing the intrinsic characteristics and physical properties of low-resistivity oil/gas reservoirs, all kinds of formation origin and mechanism of low-resistivity oil/gas reservoirs are analysed systematically and a great many of examples are given. Then the low-resistivity oil/gas reservoirs are classified by their formation origin. By setting up all kinds of interpretation models of low-resistivity oil/gas reservoirs, discussing and studying the low-resistivity oil/gas reservoir interpretaion and prediction methods, a set of practicable and systematic well logging interpretation and evaluation methods is obtained.

鉴于此，本文针对低电阻率油气储集层测井解释和评价的现状与实际情况，从认真分析低电阻率油气储集层的基本地质特征和物理性质着手，系统地分析了低电阻率油气储集层的各种成因和机理，并例举了大量实例，在此基础之上，对低电阻率油气储集层进行了科学的成因分类，建立了各种低电阻率油气储集层的解释模型，并对低电阻率油气储集层的测井精细解释与评价预测方法作了深入的探讨和研究，形成了一套较为实用的低电阻率油气储集层测井精细解释与评价方法系统。

The quality of black soil was best, but 7.97 percent of phaeozem had been changed into middle grade or low grade land.43 percent of chernozem belonged to middle and low product field, thus the black soil degenerated seriously. Since slightly sand soil kept better land quality, the soil might be exploited through intensification of sand regulation and farmland protection.

结果表明：研究区土地质量总体东部优于西部，黑土地质量最好，但已有7.97%的黑土已成为中等或差等土地，黑钙土有43%属于中低产田，黑土地退化严重；轻度沙化土地仍保持较好的土地质量，加强沙化治理与耕地保护，仍可发挥其生产潜力。

The results showed that the amorphous iron oxide has highly catalytic activity. The intermediate products are pyrocatechin, hydroquinone, benzoquinone and low-grade fatty acid. The mechanism of catalyst oxidation is assumed that the free radical OH attacks benzene cycle at the adjacent position and para-position of OH on phenol so that the benzene cycle is opened and low-grade fatty acid is produced and transformed into CO2 and H2O.

结果表明，非晶铁氧化物催化剂在催化氧化降解苯酚时具有较高的催化活性，苯酚降解的中间产物有：对苯二酚、邻苯二酚、苯醌和低级脂肪酸，其降解机理是羟基自由基攻击苯环上OH的部位或对位而使苯环开环，生成低级脂肪酸，并最终转化成二氧化碳和水，从而使苯酚得以降解。

The craft of preparation manganic manganous oxide from low grade rhodochrosite,can not only solves the problem of high cost of manganic manganous oxide,but also achieves the resources maximizing and solves low grade or abandoned Mn-core resource outlet question.Therefore,this craft has enormous economic efficiency and social efficiency.

贫菱锰矿制备四氧化三锰工艺，不仅解决了四氧化三锰生产成本高的问题，同时还做到资源的利用最大化，并且解决了大量的贫锰矿石和废弃锰矿石出路问题，具有极大的经济效益和社会效益。

The effective treatment of low-grade sulfurous ore and the recovery of valuable minerals are of great significance for the sustainable development of mine and for the pollution reduction of low-grade pyrite.

寻找处理低品位硫矿石的有效方法，回收宝贵的有价矿产资源，对矿山的可持续性发展，减少低品位硫铁矿对环境造成的严重污染具有重要的意义。

Staining extent and intensity were evaluated semiquantitatively and mean values for each parameter were calculated. Immunostaining with D2-40 showed positivity in 100% of skeletal myxoid chondrosarcomas, 96% of enchondromas, 95% of low-grade chondrosarcomas, 80% of chordoid meningiomas, and 75% of chordoid gliomas. Staining with S100 demonstrated diffuse, strong positivity in all (100%) chordoid gliomas, skeletal myxoid chondrosarcomas, low-grade chondrosarcomas, and enchondromas, 94% of chordomas, and 81% of extraskeletal myxoid chondrosarcomas, with focal, moderate staining in 40% of chordoid meningiomas.

我们半定量地评估了这些免疫染色的广度和强度，并且计算了它们各自的平均值。D2-40阳性表达于100%例骨的黏液样软骨肉瘤、96%例内生性软骨瘤、95%例低级别软骨肉瘤、80%例脊索样脑膜瘤和75%例脊索样胶质瘤。S100染色弥漫且强烈地表达于所有的（100%）脊索样胶质瘤、骨的黏液样软骨肉瘤、低级别软骨肉瘤和内生性软骨瘤，94%例脊索瘤，81%例骨外黏液样软骨肉瘤，还有，局灶性、中度表达于40%例黏液样脑膜瘤。

The main differential diagnosis of a tumor located in the trigone of the lateral ventricle should include choroid plexus papilloma in patients under 10 years of age; low-grade gliomas, such as ependymoma, oligodendroglioma, and low-grade astrocytoma in patients between 10 and 40 years of age; and metastases and meningioma after the 4th decade of life.

位于侧脑室三角区的肿瘤其主要的鉴别诊断应该包括脉络膜乳头状瘤（小于10岁）；低级别的胶质瘤，如室管膜瘤、少突胶质细胞、低级别的星形细胞瘤等（10-40岁患者），大于40岁的要考虑的转移瘤和脑膜瘤。

Thus, my diagnosis is low-grade epithelioid neoplasm, consistent with low-grade neuroendocrine tumor.

我的诊断是低度恶性神经内分泌上皮样肿瘤，符合低级别神经内分泌肿瘤。

Focus on the situation that a certain number of low grade nonindustrial ore existed in Nanfen Iron Mine ,the feasibility and necessity of recovering and utilizing the low grade nonindustrial ore is expounded mainly from the viewpoint of the rational utilization o

针对南芬铁矿采场存在一定数量低品位非工业矿石的实际情况，主要从资源合理利用的角度阐述了回收利用低品位非工业矿石的可行性和必要性。

Oe the basis that stockpiling low grade ore necessitates the expense of rehandling, process the low grade ore directly from the pit, thus freeing up potential storage volume for waste rock.

在储蓄低等级矿石成为直接从矿坑中直接处理，加工这些矿石的必要一节后，要尽可能的寻找跟占用空间来处理废石。有些意思是猜的。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。