杂质

How could it happen is just so few time , he cheeked it times by times meanwhile he thinks lots ~ so he continued doing what he had done days before .

不是被人掺了别的什么杂质吧？于是这个老实人用力在金子上咬了一下，还好，还是深深的一道牙印。

The characterization of the coked catalyst shows that the deactivation of catalysts is caused by a jam of bulkier molecules, which are the alkylbenzenes from both reactants and products, so the deactivation cannot be avoided.

苯与长链烯烃的烷基化反应过程中，β沸石催化剂的失活是由于产品直链烷基苯本身和原料中带入的杂质芳烃逐渐堵塞孔道、阻止了反应物分子接近活性中心引起的，是由晶内开始逐渐向外发展的。

The results show that the films are characterized by the amorphous microstructure and mainly composed of Si C bondings, C C bondings as well as a small mount of oxide impurity consorted with Si; the content of the C C bondings decreased after annealing in vacuum, meanwhile the Si C bondings content increased, annealing in vacuum is beneficial to the formation of SiC; after annealing at 800 in air, a thin dense layer of SiO2 formed on the surface, which prevented the oxygen from contacting with the film and effectively protected the inner SiC from oxidizing.

结果表明，薄膜主要以非晶为主，由Si--C键， C--C键和少量Si的氧化物杂质组成；在真空条件下经高温退火后，薄膜C--C键的含量减少，而Si--C键的含量增加，真空退火有利于SiC的形成；在800℃空气中退火后，薄膜表面生成一层致密的SiO2薄层，阻止了氧气与薄膜内部深层的接触，有效保护了内部的SiC。

This gaseous impurity is able to bring about metal corrosion and contaminating.

这些气相杂质的存在会造成金属材料腐蚀，并污染环境。

Crewed Crude oil or unprocessed petroleum is called * sour, when it contains a lot of * sulfur, an impurity.

天然的或未经加工的石油称为原油，含有大量的硫和杂质。

The suitable conditions of quartz sand filtration using for purifying the NHD decarburizing/desulfurizing solution were studied,and sand-bed backwashing method and its intensity were determined.

实验结果表明：在室温，石英砂粒径范围0.60～0.80 mm、床层高度600 mm、操作压力为0.03 MPa以及滤速为8.1 m/h的条件下，NHD脱碳液经石英砂过滤净化处理后，固体杂质去除率可达89.8%以上，且处理后的NHD脱碳液的吸收性能未变。

The suitable conditions of quartz sand filtration using for purifying the NHD decarburizing/desulfurizing solution were studied,and sand-bed backwashing method and its intensity were deter...

实验结果表明：在室温，石英砂粒径范围0.60～0.80 mm、床层高度600 mm、操作压力为0.03 MPa以及滤速为8.1 m/h的条件下，NHD脱碳液经石英砂过滤净化处理后，固体杂质去除率可达89.8%以上，且处理后的NHD脱碳液的吸收性能未变。

In order to facilitate the recycling of the useful components,the heavy by-product s in benzoic acid production were decolored by adsorption and distillation processes to remove the colored impurities such as crosslinking macromolecules and carbonized compounds.

为了有效去除苯甲酸重副产物中含有的交联大分子和碳化物等有色杂质，降低有用组分资源化处理的难度，分别采用吸附和蒸馏两种方法对苯甲酸重副产物进行脱色处理。

The results show, Sodium hexametaphosphate is the best disperse, purified and decolored reagent, which can disperse attapulgite into nano-class crystal by absorption, electrochemistry and chemical treatment, separate other mineral impurity effectively, react with main colored ion into phosphate deposition achieving decolor aim.

研究结果表明，六偏磷酸钠是凹土矿良好的分散提纯和脱色剂，它通过吸附、电化学作用和化学反应使凹土晶体充分分散为纳米级晶体颗粒，使包裹其中的其他矿物杂质有效分离，并与凹土中的主要带色离子生成磷酸盐沉淀使凹土色泽变白。

Our products are characterized by strong decoloring power, large specific surface area, strong adsorptive power, low impurities and effective filtering etc.

我公司引进设备生产的活性炭产品，具有脱色能力强、比表面积大、吸附能力好、杂质含量低、过滤速度快、选择性强等特点。

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％。