高比重的

In concentrated solution of cobalt salt precipitation system, the effects of reagents of ammonia carbonate and ammonium oxalate was studied respectively.

溶液中NH4+的加入，在高 pH值条件下，存在钻氨的络合反应和钻的沉淀反应，草酸钻仍保持针状形貌：在低pH值条件下，随着NH4十加入量的增多，草酸钻形貌变得粗短，长径比、粒度减小；最后呈方形，松装比重增加。

Scene forest is in the majority in the total greenbelt area, while the appertain greenbelt and residence greenbelt occupy utterly predominance by the proportion of each type patch accounts for the total number of patch.

本文主要结论：(1)绿地景观类型构成分布不均匀，从各类型占绿地总面积的比例来看，风景林地占有较高的比例，从各类型绿地斑块占总斑块数量的比例来看，附属绿地和居住绿地占有较大的比重。

Among them,--α-Pinene、--β-Pinene、--3-Carene are the three main compounds which account for above 96% of monoterpines, and a small amount of other monoterpines,-limonene, myrcene, camphene, phellandrene.

而对于经常构成蠹类害虫树体引诱剂组分的萜烯类成分在其中占居较高的比重，主要为3种成分--3-蒈烯，--α-蒎烯和--β-蒎烯，占萜烯类总量96％以上。另外还含有少量的柠檬烯、香叶烯、莰烯和萜品油烯等成份。

The proportion of organic fertilizer in total nutrient inputs had being decreased with time, 2 the recycling ratio of nutrient of organic fertilizer was low, the regional application of organic fertilizer was imbalanced, and 3 over-application of organic fertilizer lead to nitrate pollution of groundwater and heavy metal accumulation in soil.

我国有机肥料利用中存在的主要问题是：①有机肥施用面积逐年减少，肥料结构中有机肥的比重逐年降低，但近年来趋于平稳；②有机肥养分再循环率不高，区域利用状况不平衡；③有机肥过量施用带来的一些环境问题如地下水资源污染、土壤重金属累积等。

Considering property of solid abrasive lapping with high machining efficiency and large proportion of auxiliary working time, this paper develops a new lapping machine with computer control technology and digital display technology. It can reduce worker's labor strength and auxiliary working time, on-line measure lapping height, assure workpiece size accuracy and lap automatically.

针对固着磨料研磨效率高，辅助工时比重大的特点，将计算机控制技术和数显技术应用于研磨机上，研制出新型研磨机，在减轻工人劳动强度的同时，大幅度减少辅助工时，并对研磨加工量能进行在线检测，以确保工件尺寸精度，提高了研磨机的自动化程度。

Considering property of solid abrasive lapping with high machining efficiency and large proportion of auxiliary working time, this paper develops a new lapping machine with computer control technology and digital display technology. It can reduce worker's labor strength and auxiliary working time, on-line measure lapping height, assure workpiece size accuracy and lap automatically and improve lapping machine properties.

针对固着磨料研磨效率高，辅助工时比重大的特点，将计算机控制技术和数显技术应用于研磨机上，研制出新型高速研磨机，在减轻工人劳动强度的同时，大幅度减少辅助工时，并对研磨加工量能进行在线检测，以确保工件尺寸精度，提高了研磨机的自动化程度，改进了研磨机的性能。

At present, the development of wear-resistant alloys, tin bronze service life is 1-3 times the price of tin bronze is only about 60%, can effectively substitute for tin bronze ZCuSn6Zn6Pb3, ZCuSn10P1 and so on, can produce worm wheel, sleeve, bushing, nut, slider and so on, the alloy has high strength, wear resistance, and the proportion of small, die-casting with excellent performance characteristics.

目前开发的耐磨合金，使用寿命是锡青铜的1-3倍，而价格仅是锡青铜的60%左右，能有效替代锡青铜ZCuSn6Zn6Pb3、ZCuSn10P1等，可制造蜗轮、轴套、轴瓦、螺母、滑块等，该合金具有强度高，耐磨性好、比重小、压铸性能优良的特性。

According to the current official currency exchange rate, China took up 4% in 2003 of the entire world GDP volume, with high ratio of key energy consumption of the one of the world. That is oil takes 7.4%, original coal 31%, iron and steel 27%, alumina 25%, cement 40%.

按现行名义汇率计算，2003年我国GDP约占世界的4%，但重要资源消耗占世界的比重却很高，石油为7.4%，原煤为31%，钢铁为27%，氧化铝为25%，水泥为40%。

Objective:To probe into the main cause and prevention of higher and fatality rate of epidemic encephalitis B in rural children whose parents were not at home.

目的：探讨流行性乙型脑炎近年来总体发病率、病死率逐年下降的情况下，农村留守儿童发病率、病死率所占比重较高的主要原因及预防措施。

SJY has a high brisance value, its lead cylinder compression value is larger than32mm(semi -quantity).

它的比重1.401/30℃，氧平衡-5.8％，撞击感度20％，爆速8475米·秒~(-1)/30℃，特别是具有较高的猛度，铅柱压缩值大于32毫米。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。