查询词典 high-grade

Its advantages are high activity, high output rate of light oil and high hydrothermal stability.

该催化剂具有较高的活性和轻质油收率以及较好的水热稳定性。

Methods ①Intermittent and high flux inhalation of oxygen humidified by 50%alcohol;②Aerosol inhalation of silicon oil to the patientwith significant symptom of lung;③Intro venous injection of Methylene blue and Vitamine C according to the cyanosis;④Intro venousinjection of half dosage cedilanid to the patient with high heart rate;⑤10～ 20 milligram furosemide intro venous injection;⑥The key point iscombine and high dosage using hyoscyamine and dexamethason during the treatment and to apply respirator to the patient those who have respi-ratory failure or hypoxemia.

方法①间断高流量吸氧，同时湿化吸入50％的酒精抗泡；②肺部体征明显者雾化吸入二甲基硅油；③根据病人紫绀情况分别给予美兰或维生素C静推；④心率快者用半量西地兰静推；⑤用速尿10～20mg静推；⑥关键性治疗为莨菪碱联用地塞米松冲击疗法，遇呼衰、低氧血症者，同时使用呼吸机等。

PIH disease pathogenesis, has not yet been clarified, according to the etiology of epidemic survey found that pregnancy causes a high incidence of disease may be related to the following factors:(1) the spirit of excessive tension or by stimulating the central nervous system dysfunction resulting in;(2) the cold season or temperature change is too large, especially at high pressure;(3) of young pregnant women or elderly primipara;(4) has chronic high blood pressure, nephritis, diabetes and other medical history of pregnant women;(5) malnutrition;(6) short body fat;(7) uterine hypertonicity, such as polyhydramnios, twins, diabetes, fetal macrosomia and the mole, etc.;(8) family history of hypertension, particularly pregnant women pregnant mother has history of hypertension.

妊高症的发病原因，至今还未阐明，根据流行病因学调查发现，妊高症的发病原因可能于以下因素有关：(1)精神过分紧张或受刺激致使中枢神经系统功能紊乱；(2)寒冷季节或气温变化过大特别是气压高时；(3)年轻孕妇或高龄初产妇；(4)有慢性高血压、肾炎、糖尿病等病史的孕妇；(5)营养不良；(6)体型矮胖；(7)子宫张力过高，如羊水过多、双胎、糖尿病巨大胎儿及葡萄胎等；(8)家族中有高血压史，尤其是孕妇之母有妊高症史者。

In this paper the key points discussed were that, under the condition of a sharp hypsography of desert areas of Ordos basin, we used some new geophysical methods in the investigation of surface structure to obtain high accurate surface structure data and provide reliable scientific foundation for data acquisition and process; we dealt with the optimum coupling of surface geophones and the digital realization technique in desert areas, dug into a method of high frequency compensation according to attenuations by absorption near surface, adopted data processing and correction technique, solved high frequency attenuation and geophone coupling, eliminated the influences of sharply transverse fluctuation of hypsography in desert area on the seismic data, enhanced the fidelity and SNR of seismic section, and finally picked up more geologic information on the seismic profile and improved the precision of the lateral prediction for the reservoir beds.

本文旨在研究鄂尔多斯盆地沙漠区地表变化比较大的情况下，在表层结构调查中通过应用一些地球物理新方法，以获取高精度的表层结构数据，为资料采集和数据处理提供更科学的依据；研究在沙漠区地表检波器最佳耦合的方式与数字实现技术，研究通过近地表的吸收衰减规律进行高频补偿的方法，采用数据处理校正技术，解决高频吸收及检波器耦合，消除沙漠区表层横向剧烈变化对地震资料的影响，提高地震剖面的保真度和信噪比，从而使更多的地质信息能够从地震剖面中反映出来，提高储层横向预测的精度。

In particular, some chronically ill patients with high blood pressure, high blood pressure because of the state has been compared to adapt, even if the blood pressure increased significantly, there is no clear feeling, which they think that their blood pressure is not high, so they delay treatment of hypertension.

特别是一些长期患病的高血压患者，由于对高血压的状态已经比较适应，即使血压明显升高，仍无明显的感觉，由此便认为自己的血压不高，于是便延误了对高血压的治疗。

We discusses that the imperativeness and feasibility as well necessity of developing high water use efficiency agriculture in china at these aspects: security of grain and economy and water resource, agriculture resource in North and South of China, regulating agriculture structure, agronomic methods for drought resistance and water saving, crop high yield breeding and high efficiency water resource management.

从粮食安全和经济安全及水安全，南北方农业资源，农业结构调整，农艺抗旱节水措施，作物高产育种，高效的水管理体系等方面，论述了发展高水效农业发展的迫切性、可行性和必然性。

But its super hardness and high wear-resistance make itself difficult to be grinded. Its grinding efficiency is low and grinding cost is high, which result in the inacceptable high price by the clients.

但是其高硬度和良好的耐磨性给其自身的刃磨加工带来了很大的困难，主要体现在磨削效率低和磨削成本高，导致用户难以接受其昂贵的价格。

The results show that the addition of certain manganese in high chromium cast iron leads to a re-partitioning of alloy elements between austenite and carbide and a dropping in equilibrium phase transformation temperature although it's inappreciable for the influence of manganese on mass fractions of every phase in this cast iron. There is about 87 percent ledeburite under thermodynamic equilibrium condition and 23 to 32 percent M7C3 type carbide under thermodynamic non-equilibrium condition in the microstructure of 3C-l5Cr-4Mn-0.75Si system high chromium cast iron. Furthermore, the improvement of austenite stability and hardenability of manganese alloyed high chromium cast iron may been expected because there is a substitution between manganese and chromium that has been suggested by thermodynamic calculations.

结果表明，锰虽然对高铬铸铁中的各相数量影响不大，但一定数量的锰存在促使合金元素在奥氏体和碳化物两相中的重新分配，并降低平衡相的转变温度；在平衡条件下3C-15Cr-4Mn-0.75Si系高铬铸铁中菜氏体数量约占87%，而非平衡条件下M7C3型碳化物数量在23%-32%之间，且奥氏体中锰铬互替现象保证了奥氏体的稳定性和加锰高铬铸铁的淬透性。

The results show that the addition of certain manganese in high chromium cast iron leads to a re-partitioning of alloy elements between austenite and carbide and a dropping in equilibrium phase transformation temperature although it＇s inappreciable for the influence of manganese on mass fractions of every phase in this cast iron. There is about 87 percent ledeburite under thermodynamic equilibrium condition and 23 to 32 percent M7C3 type carbide under thermodynamic non-equilibrium condition in the microstructure of 3C-15Cr-4Mn-0.75Si system high chromium cast iron. Furthermore, the improvement of austenite stability and hardenability of manganese alloyed high chromium cast iron may been expected because there is a substitution between manganese and chromium that has been suggested by thermodynamic calculations.

结果表明，锰虽然对高铬铸铁中的各相数量影响不大，但一定数量的锰存在促使合金元素在奥氏体和碳化物两相中的重新分配，并降低平衡相的转变温度；在平衡条件下3C-15Cr-4Mn-0.75Si系高铬铸铁中莱氏体数量约占87％，而非平衡条件下M7C2型碳化物数量在23％～32％之间，且奥氏体中锰铬互替现象保证了奥氏体的稳定性和加锰高铬铸铁的淬透性。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷