高比重的

Composition of both spermatophyte and pteridophyte flora of a relict Alsophila spinulosa community in Wutongqiao Nature Reserve of Leshan region was discussed. It shows the proportion of Tropic and Cathaysia elements in both spermatophyte flora and pteridophyte flora was almost 2/3 of the total at the genus level, and even more at the family level. There was a distinct ancient endemism phenomenon in spermatophyte flora, owning to being 8 relict and remnant endemism genera in the total of 9. Furthermore, the proportion of Tropic and Cathaysia elements both at family and genus level in the pteridophyte flora were much greater.

选以乐山五通桥桫椤自然保护区-桫椤群落的种子植物区系与蕨类植物区系组成为研究对象，发现种子植物区系在属的水平上热带成分与古华夏成分占到近2/3，在科的水平上则更高；种子植物区系中有9个中国特有属，其中8个为残遗或原始类型的古特有属，表现出典型的古特有现象；而在蕨类植物区系中热带成分和华夏成分所占比重更大。

Stainless steel 35-42 °Be FeCl 3 35-55 Mild steel 35-42 °Be FeCl 3 35-55 Beryllium copper 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Copper and copper 30-42 °Be FeCl 3 or 40-55 alloys ammoniacal copper or 33 °Be acidic CuCl 2 Inconel and other 38-42 °Be FeCl 3 or 45-55 high nickel alloys conc nitric/conc hydrochloric acid/water 1:1:3 Aluminium 20% NaOH 60-90 or conc hydrochloric 20-65 acid/water 1:4 55 or alkaline potassium ferricyanide Brass 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Molybdenum Alkaline potassium 55 ferricyanide 40-55 or 40 °Be Fe(NO 3 ) 3 Titanium 10-50% HF 30-50 (optionally with HNO 3 )*The concentration of etchant (column 2) is measured in Degrees Baume where:°Be = 145 (SG - 1/SG); and SG is the specific gravity of the solution.

表美- 00002表2金属共同腐蚀剂*温度° C的不锈钢35-42 °成为氯化铁三 35-55低碳钢35-42 °成为氯化铁三 35-55铍铜30-42 °成为氯化铁3或40-55氨铜或33 °是酸性CuCl的2铜及铜30-42 °成为氯化铁三或40-55合金氨铜或33 °是酸性CuCl的2镍铬铁合金和其他38-42 °成为三氯化铁3或45-55高镍合金浓硝酸/浓盐酸/水1时01分03秒铝20％的NaOH浓盐酸60-90或20-65酸/水1：4 55或氰化钾铜30-42 °碱性钾成为三氯化铁3或40-55氨铜或33 °是酸性CuCl的二钾55钼碱性铁氰化钾40-55或40 °成为铁Fe（NO 3）3钛10-50％的HF 30-50*的浓度对侵蚀剂（栏2）测量波美度其中：°成为= 145（法兴- 1/SG）；和SG是比重。

The fibre reinforced resin bond grinding wheel for cutting off is widely used. The traditional presses used for manufacture this type of grinding wheel in most factories at present have problems, such as laboriousness for workers, low efficiency of production, and dependance of products quality on operators' skillnes. This paper introduced a new type of press for shaping grinding wheel with six stations designed by the authors, considering the shortcoming of presses in use and the operating characteristics in manufacture of this type of grinding wheel.

概述纤维增强树脂薄片砂轮是一种低值易耗产品，在树脂砂轮中占有很大的比重，主要用于切割各种规格的型钢，在国内外都有较大的市场，随着市场竞争的加剧，对产品质量和生产效率提出了更高的要求，各生产厂家只有通过降低生产成本提高产量来挤占市场。

Reason analysis as follows: Said from the teaching aspect,because the partial teachers instrumentation experience,teaching item has not demarcated excessively is high,says too mixed,the instrument principle proportion higher has affected the teaching effect;Takes an exam the student thinking mode which the education creates to ossify,student heavy knowledge grasping,light thinking mode training.

原因分析如下：从教学方面来说，由于部分教师本人没有使用仪器的经验，教学目标定的过高，讲得太杂，仪器原理的比重过高等影响了教学的效果；应试教育造成的学生思维方式僵化，学生重知识的掌握，轻思维方式的训练。

To deal with the problem that Electrostatic Separation of waste circuit board is high in purity, whereas relatively low in output/capacity,we developed multi-cylinder electrostatic separator and waste circuit winnower which is developed on the principle that the specific gravities of copper powder/grain and plastics are remarkable different..

另外针静电分离对废旧电路覆铜板的分离纯度高而产量比较小，我公司开发的多滚筒静电分离机和根据粉碎后的电路板中铜粉与环氧树脂粉的密度比重差距比较大的原理研制的废旧电路板气流分选机解决了分离产量问题。

But in pharmaceutical, computer, and gradually all hi-tech industries, the cost of research, development, stylizing, licenses, patents, copyrights, marketing and customer support -- the service component -- are increasingly substantial.

不过，在制药、计算机以及越来越多的高科技产业中，用于研发、设计、许可、专利、版权、营销和客户支持的费用，也就是那些属于服务性的成分的费用，却占据着越来越大的比重。

But in pharmaceutical, computer, and gradually all hi-tech industries, the cost of research, development, stylizing, licenses, patents, copyrights, marketing and customer support -- the service component -- are increasingly substantial.

不过，在制药、计算机以及越来越多的高科技产业中，用于研发、设计、执照、专利、版权、营销和客户支持的费用，也就是那些属于服务性的成分的费用，却占据着越来越大的比重。

If peasants are in a heavy pressure from capital restriction, they may have to sell at the "three sale fastigiums" and lose their opportunities of maximizing their sale profits.

回归结果在整体上验证了本文的整体分析及具体假说，农户的农作物品种越特殊、农户家庭经济中农业比重越高、户主信息可得性越强，农户越倾向于选择&新型销售方式&；农户面临的资金约束是农户选择在&三大销售高峰期&销售的最重要原因，当农户的资金压力形成硬约束时，农户没有选择实现利润最大化的销售时机的自由。

Zero working capital management through the reduction in current assets' investment, causes the working capital to account for the enterprise total turnover the proportion tends is smallest, is advantageous for the enterprise the more fundings invested to the income high fixed asset or the long-term investment; through floats a loan the current liabilities to meet the working capital need massively, reduces enterprise's fund cost.

零营运资金管理manage通过减少在流动资产上的投资Investment，使营运资金占企业Company总营业额的比重趋于最小，便于企业Company把更多的资金投入到收益较高的固定资产或长期投资Investment上；通过大量举借短期负债来满足营运资金需求，降低企业Company的资金Costs成本。

Zero working capital management through the reduction in current assets' investment, causes the working capital to account for the enterprise total turnover the proportion tends is smallest, is advantageous for the enterprise the more fundings invested to the income high fixed asset or the long-term investment; Through floats a loan the current liabilities to meet the working capital need massively, reduces enterprise's fund cost.

零营运资金治理通过减少在流动资产上的投资，使营运资金占企业总营业额的比重趋于最小，便于企业把更多的资金投入到收益较高的固定资产或长期投资上；通过大量举借短期负债来满足营运资金需求，降低企业的资金成本。

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。