查询词典 grade

The heat-producing power of weapon-grade plutonium, weapon-grade uranium and depleted uranium per kilogram were calculated through simulation and dynamic decay cascade, the regression line was fitted and analyzed. The temperature fields of the nuclear explosive device raised by Steve Fetter were analyzed according to the simulation results of the heat-producing power of the exothermic materials. The hypothetical models of the nuclear explosive device were modified according to the normal disposal method in industry manufacture, and thermal stress distribution was simulated with the information processed before.

通过级联衰变动力学计算得到每千克武器级钚、武器级铀及贫化铀的放热功率，并对仿真结果进行拟合分析；选取其最大值对Steve Fetter提出的公开核装置假想模型进行温度场数值仿真；根据工业生产实际对Steve Fetter提出的公开核爆炸装置假想模型进行修订，并对其进行热应力仿真分析。

Although much of the high-grade ore has been used, there remains enough low-grade ore to last for centuries

品位高的富铁矿已经开采很多，品位低的铁矿还够开采若干个世纪。

As society advances, the increasing consumption of raw materials, leading to the depletion of high-grade ore resources growing, increasingly depleted ore grade.

摘 要：随着社会的前进，原材料消耗不断增加，导致富矿资源日益枯竭，矿石品位日趋贫化。

The quality of these small mines are poorly managed and the economic benefits for the plan, and some in the ore-doped large number of non-ferrous metal debris, some with low-grade ore exports of high-grade pretending.

而这些小矿山质量管理落后，为图经济利益，有的在矿石中掺杂大量的非铁矿杂物，有的以低品位矿石冒充高品位出口。

Liangshan Autonomous Prefecture lies in the major high-grade Fe ore metallogenic province in Sichuan and is major productive basis of high-grade Fe ore s in Sichuan.

凉山州是四川省富铁矿最主要成矿区和富铁矿矿石的主要生产基地。

This kind of sulfide ore is relatively refractory and it is difficult to improve production ibexes, with high cost and low benefit. During 1988 to 2000, the per-product ability is 157.5 ton per day, primitive mineral tin grade is 1.89% and obtained 52~54% tin concentrated, with 51.06% recovery. Tin grade of 1.5% make mining and processing keep equal.

这种硫化矿比较难选，生产指标一直难以提高，处理该类型矿石生产指标低，成本高，效益差。1998年至2000年的三年间，平均生产能力157.5吨／日，原矿锡品位1.89％，产出的锡精矿含锡52～54％，锡回收率51.06％，原矿采选持平锡品位为1.5％。

Results show that as a whole the region is quite good in soil environment quality, except for Wushan and Fengjie districts, where high Cr and Ni background values have led to existence of a certain area of Grade Ⅱ soils. Over 90% of the soils are in Grade Ⅰ in terms of As, Cu, Hg, Pb and Zn. Artificial pollution is local and limited in area. For instance, spots of Hg pollution are found only in the vicinity of residential settlements, factories and minings.

结果表明：三峡库区区域土壤环境质量总体上较好，除巫山、奉节地区Cr、Ni自然高背景导致存在一定量的区域性二类土外，表层土壤中As、Cu、Hg、Pb、Zn等元素一类土占全区面积均在90%以上，仅存在局部性人为污染，如Hg在城镇、厂矿等地的点状污染；不存在区域性的人为污染。

The production line for pets food all has selected the modernest stainless steel machines.The production line for pets food has proved by the national GMP,The clean grade of product clean section has reached 300,000 grade.It is the only pets comany that is proved by GMP.

宠物食品生产线全部采用国际最先进的不锈钢设备，并且宠物食品生产车间通过了国家GMP认证，生产区洁净级别达到30万级，是国内惟一一家通过GMP认证的宠物食品生产企业。

The results indicated that most students were dependent on the problem's surface structure for their sortings. Futhermore, an interaction effect was found between the student's grade and their achievement. As the grade level increase, instesad of using surface structure, high achievement students tended to sort problems according to their semantic structure. On the contrary, low achievement students became relied more and more on the surface structure of the problems while sorting.

另外，学童之年级及其数学成就对他们采用何种策略解题有交互影响；随年级的提升，高数学成就组学童倾向放弃弃表面特徵，而改较高层次的语意结构作为分类的基础；反之，五年级低成就组学童则变得更依赖问题的表面特徵作为分类的依据。

We are now increasing the grade of ore to the mill up to or above our targeted average grade of approximately 7.5 grams per tonne gold.

目前我们在逐步提高选矿厂加工矿石的品位，最高将达到或超过我们的平均品位目标-约为7.5克/吨。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。