产生金属的

The result shows that modification can make the β-Si phase thin when the joining amount is 0.3wt%, making the best modification result. Alloying elements Mn and Ni are always used to neutralize iron"s harm in aluminum alloys. They can form many kinds of complicated metallically compounds with Fe and Al, and eliminate needle-like iron-rich phases to reduce iron"s harm in Al-Fe alloy. Copper makes the alloy microstructure thick and electromagnetic stirring obviously makes the alloy microstructure thin, round the second phase, when the stirring voltage is 200V, making the best result; Reheat makes liquid phases emerge in the alloy, when the warming temperature is 650?

研究结果表明：红磷可以明显细化合金中的初晶硅，当加入量为0.3wt%时，取得最佳变质效果；锰、镍合金中加入后，通过形成多种复杂金属间化合物，细化针片状富铁相，减小铁对铝硅合金性能的危害；铜使合金微观组织发生粗化；电磁搅拌明显细化合金组织，使第二相圆整化，搅拌电压为200V时，取得最佳细化效果；二次加热使合金组织中产生部分液相，在650？

No 2 combined workshop of Yulin refinery under Shaanxi Yanchang Petroleum Company Limited adopts semi-regenerated active carbon fixed bed process for its gasoline sweetening process, because of unadvanced technology limited treatment capacity, big consumption of caustic, as well as being unable to satisfy production requirements. In the light of above, Yulin Refinery built up a new gasoline sweetening unit with treatment capacity of 45t/h in 2007, the unit adopts patented fiberfilm contactor gasoline sweetening technology from Merichem company in USA.

陕西延长石油有限责任公司榆林炼油厂联合二车间催化旧汽油脱硫醇装置采用的是半再生活性炭固定床工艺，由于工艺技术落后，处理量小，消耗碱量大，产生的碱渣无法处理、不能满足生产等制约因素，榆林炼油厂于2007年新建一套汽油脱硫醇装置，处理量为45t/h，该装置引进美国Merichem公司金属纤维膜接触器脱硫技术。

The electrolytic manganese slag is a residue from production of manganese in electrolyzing the manganese ore. It is necessary to realize the primary properties of the slag before utilization.

电解锰渣是由锰矿采用电解方法生产金属锰过程中产生的废渣，了解电解锰渣的基本性质有利于其资源化利用。

In addition, the forming reasons of entrapping poles and prejudicial shrinkage existing in the TiAl based alloy valves poured in permanent mould during the centrifugal casting process have been discussed.

此外，针对金属型离心浇铸Ti-48Al-2Cr-2Nb 合金汽车排气阀内部的常见缺陷，探讨了离心力场下排气阀内部卷入性气孔和偏中心线缩松的产生机理。

Effective sequestering of metal ions, resulting in better water retention even though used in hard water processing.

对于金属离子有着良好的掩蔽作用，即使用硬水加工生产，也能产生较好的保水效果。

This is a material in indigo grass branch and leaf of a kind of existence, produce the soluble white solution after fermenting, soak the fabric in this kind of solution, take out, turn into insoluble in water and blue and green and blue the oxidation of the oxygen in the air, it is able to bear drying in the sun washing and heating.

媒染剂除了天然的草木灰、石灰、明矾石、铁锈水、醋等物不会产生公害外，也有使用多种含金属盐的化学品，如醋酸铝、醋酸锡、醋酸铜、醋酸铁等物，这些化学品或多或少对环境有些影响，但比起化学染料来可说非常微小。

A polymeric buffer bar is employed to replace the conventional metallic transmission bar in a split Hopkinson pressure bar to determine the spalling strength of a long concrete rod that is placed between the metallic incident bar and the polymer buffer bar.

提出了利用Hopkionson压杆测量混凝土层裂强度的新实验方法：用高聚物材料取代传统的金属材料透射杆，混凝土试件为细长杆，由于高聚物波阻抗比混凝土小，试件中压缩波在试件／吸收杆界面反射后形成拉伸波使试件产生层裂破坏，通过吸收杆上透射波形可以确定混凝土层裂强度。

Compressed air is used to drive a metal projectile cylinder within the handpiece toward the applicator.

压缩的空气驱动机头部位的金属发射器圆筒，撞击贴敷部分产生冲击波。

Using the wrong size electrode or filler metal and amperages which are not correct can also cause unacceptable root contours.

使用不当的焊条或填充金属及电流也能产生不能接受的焊根轮廓。

Second, the use of so-called 500 years does not break down the FRP for the fan shell material, with anti-acid, anti-corrosive, non-rusting, long service life, etc., at the same time can be reduced because of machine due to an excessive number of metallic materials have resonance phenomenon.

二，采用号称500年不分解的FRP玻璃钢）为风机外壳材质，具有抗酸碱，防腐蚀，不生锈，使用年限长等特点，同时可减少由于整机因金属材料过多而产生的共鸣现象。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。