粗铅

On the base of theorial study,ore experiment is made and feasible grind granularity and medicament system and the flow of Galenite flotation firstly is ascertained.

在优先选铅浮选过程中，经一次粗选，一次扫选，两次精选，所得到铅精矿中铅的品位达66.04%，铅的回收率为87.31%，银的回收率为70.40%，在浮选锌时，一次粗选，两次扫选，两次精选，所得锌精矿中锌的品位58.26%，锌的回收率为82.13%，银的回收率为19.36%，取得了银的总回收率达89.76%较先进的指标。最后，对浮选药剂与方铅矿、闪锌矿和银矿物的作用机理进行了深入探讨与分析，认为本实验中所使用的抑制剂和活化剂不会对银矿物的回收产生不利影响。

With the increase of lead concentration, the inhibition index of the radical growth increased remarkably, the radical became podgy, deformed, even browning and necrotic.

进一步的光学显微镜分析结果表明，根尖生长锥随着铅胁迫浓度的增加而变短、变粗、畸形，根尖细胞变短、变小。

Process of flotation of acture ore is the following: firstly, adding Na_2CO_3, ZnSO_4, CSU-1 to the pulp while grinding, and thus in this condition of low Eh, marmatite is inhibited; Secondly, adding CSU-1 to the pulp out of grinding machine, then amesonite and iron sulfur mineral can be flotated using diethyldithiocarbamate as collector; High quality lead and antimony concentrate can be got by adding CSU-1 and calcareousness; Lastly, marmatite is flotated by adding calcareousness, CuSO_4, xanthe, and D-250 to get zinc concentrate.

小型试验研究表明，首先在脱硫粗选作业只加入适量的Na_2CO_3、ZnSOO_4、和CSU-1至磨矿机，利用磨矿机的研磨和磨机中的低电位环境，使铁闪锌矿受到抑制，而最容易浮的脆硫锑铅矿和黄铁矿、磁黄铁矿等硫化矿物则依然具有可浮性；在磨机出来的矿浆中分别加入CSU-1进一步抑制易浮的铁闪锌矿，然后加入乙硫氮将脆硫锑铅矿和硫化铁矿快速浮净，加入石灰和CSU-1，浮选分离出高质量的铅锑精矿；接着添加石灰、CuSO_4、黄药及2~#油选别铁闪锌矿。

Material-saving pencilwhile using like wooden pencil, The lead core of the nib becomes thick, the available special-purpose cutter is repaired, until the plumbaginous core uses up, The nib is abandoned.

节材铅笔在使用中与木制铅笔一样，使用过程中笔头的铅芯便粗，可用专用刀具修整，直致铅芯用完，笔头弃掉。

There is a big problem that too much sulphur is wasted in lead bullion pyro-refining process by adding sulphur directly in northwest metallurgy of lead and zinc factory. As to the problem, a new method to decopper from lead billion through changing sulphur to PbS is invented.

针对西北铅锌厂粗铅火法精炼过程中，直接加单质硫进行除铜而出现硫损过大的问题，对除铜工艺中硫的利用方式进行了研究，提出一种除铜新工艺，即利用硫化铅代替单质硫进行除铜。

The Egyptians are also thought to have come into knowledge about elements such as antimony, copper, crude arsenic, lead, opium, and mandrake.

埃及人同时也被认为其了解诸如锑，铜，粗砷，铅，鸦片及曼德拉草之类的物质及元素。

The Egyptians are also thought to have come into knowledge about elements such as antimony, copper, crude arsenic, lead, opium, and mandrake.

人们认为那时埃及人也了解了诸如锑、铜、粗砷、铅、鸦片及曼德拉草之类的物质及化学元素。

The paper introduced the practice in realizing stable and high output continuously by the rational modification of operation and equipment of the lead bullion system in No.

介绍水口山三厂粗铅系统操作和设备的合理改进，实现持续稳产高产的生产实践。

It is concluded that because the mica schist is mixed with feeble weathered granite, the grain is broken up severely; the back-analysis parameters of explosion rockfill(3BⅠ)are lower than the results of laboratory triaxial test, and the Duncan E-B parameters obtained by back-analysis of her sandy gravel (3BⅡ)are higher than the triaxial test results of laboratory triaxial test which can not reflect the mechanical behaviors of the dam material objectively; the research should be strengthened in 300 m high rockfill dam construction. The fitting modes of the space displacement field of prototype observation are also explored and it turns out that the results of IGA analysis considering only vertical deformation meet the need of dam's technical accuracy.

结果表明，由于在微弱风化花岗岩掺加云母片岩，颗粒破碎严重，爆破堆石料（3BⅠ）的原级配粗粒料反演参数远低于室内三轴试验成果；与3BⅠ堆石料相反，砂砾料（3BⅡ）现场反演得到的邓肯E~B模型参数高于室内三轴试验值；室内三轴试验成果不能客观反映筑坝材料的力学特性，对于当今的300 m级高土石坝建设，宜加强对原级配粗粒料的力学特性研究；同时对原型实测的空间位移场不同拟合方式进行了探讨，认为仅考虑铅直向变形的IGA参数反演成果能基本满足土石坝工程的精度要求。

After 18 tea leaf producing factories were investigated,the results showed that the tea leaf of goodgrade in the factories would alleviate the lead contamination in the tea leaf ,while the commer tea leaf producing process can significantly increased the lead contamination in tea lead.

通过对18个茶叶生产厂家的分析调查发现，精制茶的生产工艺对茶叶的铅含量在总体上有降低作用，而粗制茶的加工工艺却有增加的趋势，因此茶叶生产工艺对茶叶的铅含量影响很大。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。