查询词典 impurity

Using the manganese powder for removing the impurity of the manganese chloride produced by waste hydrochloric acid leaching of lean rhodochrosite was studied,and the optimum preparation process conditions are obtained.

对用锰粉去除工业废盐酸浸出低品位菱锰矿制取的氯化锰溶液中的杂质进行了探讨与研究，得出了最佳的工艺条件。

It is internal at present lashing sending solid anything small and roundish , fibre , thick liquids and mixes the suspension the most ideal impurity pump of thing medium .

它是目前国内抽送固体颗粒、纤维、浆料和混合悬浮物介质最理想的杂质泵。

Weld line is the key part of ERW steel pipe because the impact toughness of its raw material is multiple times higher than that of seamless steel pipes. The impact energy of weld line can reach 60% of the raw material by controlling impurity content in raw material, the height and direction of the burr, mold border shape, welding leg, welding speed, heating power and frequency, welding extrusion capacity, the depth and temperature of intermediate frequency, as well as air-cooled length. Seamlessness can be realized if further optimization methods are adopted.

由于ERW钢管母材的冲击韧性数倍于无缝钢管，焊缝处的冲击韧性是ERW钢管的关键，通过控制原材料杂质含量、纵剪毛刺高度与方向、成型边部形态、焊角、焊接速度、加热功率与频率、焊接挤压量、中频退伙温度与深度、空冷段长度等工艺参数保证了焊缝的冲击功达到母材的60%以上，如进一步优化，可实现焊缝冲击功接近母材，从而实现性能无缝化。

The gas chromatography has extremely high sensibility to identify H_2, so it is a method to detect siderite which contains micro clays and impurity minerals with OH groups, vice versa.

由于气相色谱对H_2的检出灵敏度特高，可作为对菱铁矿中含有羟基结构的微量粘土及其矿物杂质的检测方法，反之亦然。

The results indicated that the dejects was caused by pitting corrosion of impurity element iron in silver coin by environmental chloride compound .

结果表明，在银币缺陷部位的腐蚀坑内存在以铁元素为主的物质，基材中的铁元素与外界的氯引起银币的腐蚀，造成了表面缺陷。

Meanwhile,the effect of nitrogen impurity on the properties of the synthetic diamond was studied by using the ESR spectrometry and spectrography.

利用电子自旋共振谱和摄谱方法研究氮杂质对人造金刚石性质的影响。

No cadmium ore is mined for the metal, because more than enough is produced as a byproduct of the smelting of zinc from its ore, sphalerite, in which CdS is a significant impurity, making up as much as 3%.

没有为了开采镉而开矿的，因为从锌矿中提炼锌的时候产出的副产品已经是绰绰有余了，在闪锌矿中镉是最主要的混杂物，大概占3％。

Pit formed in stamper molding, is the smallest thing on the stamper. It's as small as smog particle, which means that even the smallest impurity can damage large amounts of data.

在制主片过程中形成的 pit，是所有制作形成物中最微小的，每一个只有烟雾的颗粒大小，这就意味着最微小的杂质也会损坏大量资料。

The study of the mineralogy indicates:(1)Few impurity and poor sulfur in thestibnite of Shalagang antimony.(2)From the stibnite's cell parameter, it finds that thecell parameter of Shalagang antimony's stibnite approachs the standard value. And iteduces the forming temperature of the stibnite is between 150℃～200℃.(3)Thequartz in different period have different thermoluminescence curve, and thethermoluminescence curves of the quartz in rich ore havethe characters of gently curve, unconspicuous peak and the luminous intensity has therelationship of positive correlation with the temperature.

矿物学研究发现：(1)沙拉岗锑矿床辉锑矿以所含杂质少，贫硫为主要特征；(2)利用晶胞参数测定得出，沙拉岗锑矿床辉锑矿晶胞参数接近于标准值，推算形成温度在150℃～200℃之间；(3)不同期次石英具有明显不同的热释光曲线，其中主成矿期石英的热释光曲线以发光曲线平缓，峰位不明显，发光强度随温度升高而增强为特征。

When the temperature became higher, the O and N impurity absorbed on the surface of powder reacted with catalyst and formed inertial compositions, wrapped on the surface of graphite powder, then the process of transformation stopped.

在较高温度下，纳米石墨表面吸附的含氮、氧等官能团与熔体金属发生反应生成惰性固态化合物并包裹在石墨表面，阻止了石墨的进一步溶解。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。