硅元素

The whole process is not simple as it involve huge cost and effort to revalidate the new process technology and it took this Giant chip maker almost six years to get rid of lead element in silicon fabrication.

整个过程并不简单，因为它涉及到巨大的代价和努力，重新新的工艺技术，并采取了这一巨大的芯片制造商近六年来摆脱铅元素硅制造。

With an exception of Mo, most of elements distribute in sialic and sulfide state.

除 Mo 外，绝大部分元素存在于硅铝化合物和硫化物结合态中。

The Limit Oxygen Index also can be raised from 16.5 to 22 and 23 respectively.The Octaphenyl POSS is synthesized via the hydrolysis and condensation of phenyltrichlorosilane (PhSiCl_3) and the subsequent rearrangement reaction catalyzed by tetramethylammonium hydroxide. Poly are easily synthesized from Ph-POSS via bromination with Br_2/Fe system.

以苯基三氯硅烷为起始原料，通过水解缩合、催化重排的办法制备了八聚苯基笼型倍半硅氧烷，在Fe粉催化条件下将溴元素引入Ph-POSS的苯环得到Br-POSS；使用该种Br-POSS和Sb_2O_3的混合物(3∶1，质量比)作为聚苯乙烯树脂的添加剂，采用熔融共混法制备(Br-POSS+Sb_2O_3)／PS复合材料。

The synthesis of hetero-atoms zeolites is an important aspect of the research of zeolites.

杂原子沸石的合成，是目前分子筛研究中的一个重要方面，由于骨架中引入性质不同于硅、铝的元素，有可能赋于沸石新的催化性能，拓宽沸。。。

Chromium ore samples were fused by alkali and then leached out by hydrochloric acid. After the analytical lines of the elements were selected, the conditions of sample uptake, carrier gas flow, cooling gas flow and RF power were optimized with the system of SeaSpray nebulizer and cyclone spray chamber, based on the principle of best signal stability. The determination of chromium, aluminum, iron, magnesium and silicon in chromium ores was fulfilled.

铬矿石样品经碱熔融和盐酸浸取后，选用SeaSpray雾化器和旋流雾室，选定了待测元素的分析线，以信号的稳定性为原则，优化了样品提升量、载气流量、冷却气流量和入射功率，实现了电感耦合等离子体原子发射光谱法对铬矿石中铬、铝、铁、镁和硅等主量成分的测定。

The relationship between reduction potential of the oxides and the corrosion resistance of cold-rolled steel sheet was revealed.

在冷轧钢板退火过程中，钢中的锰、硅等元素会向钢板表面迁移，与环境中微量的氧化性气体发生反

Improvement of combustion properties of the POSS/polymer composites mainly depends on barrier effect generated from silicon-oxygen cages of POSS, elements or groups of effective flame retardance in organic substituents of POSS, and dispersion of POSS in polymer matrix.

进一步的研究分析表明，POSS提高聚合物材料的阻燃性能主要取决于POSS本身核心笼型硅氧结构在材料燃烧中的阻隔作用、POSS有机取代基所包含的高效阻燃元素或基团、POSS在聚合物基体中的分散状况等因素。

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。