硅的

It was found that casting Al-Si alloy conforming to industrial standard could be obtained after refining by using cryolite and sodium chloride as purificant and removing iron by using manganese as de-ironing medicine.

研究结果得出，使用含冰晶石和氯化钠混合物的精炼剂以及金属锰为除铁剂并采取适当的工艺方法，可以有效地去除一次铝硅合金中的杂质，制取符合工业标准的铸造铝硅合金。

Summarize the condition that the silicified wood forms, must possess: The volcano breaks out or other reasons make the stratum subside, the trees are buried deeply, the environment close, bear the high pressure, stand the infiltration of the high-temperature karst taking oxidizing silicons two times as principal ingredients, go through it with the endless long river that must be written every year, just reach the silication right fruit after all.

概括硅化木形成的条件，必须具备：火山暴发或其他原因使地层陷落、树木深埋、环境封闭、承受高压，并经受以二氧化硅为主要成分的高温岩溶的浸润，历经以千万年记的漫漫长河，才终达硅化正果。

These results above indicated that ordered mesoporous titanosilicate with different Si/Ti molar ratio could be obtained using trimeric surfactant C_(14-2-14-2-14) as templating agent and the Si/Ti ratio could be as low as 5 without the losing of mesostructure ordering.

上述结果说明以自组装能力强的三聚表面活性剂C_(14-2-14-2-14)为模板剂可以制得不同钛含量的介孔硅钛酸盐材料，尤其是可以得到Si／Ti比低至5的高钛含量介孔硅钛酸盐材料，这对于提高此类材料的氧化催化性能有重要意义。

Nickel oxide supported silica-pillared zirconium phosphates with high surface area have been prepared successfully by directly loading Ni〓 to uncalcined APS intercalate of α-ZrP followed by calcination.

1采用将金属盐直接负载到未焙烧的α-ZrP的胺丙基硅脂嵌入物上，然后再焙烧的方法，制备了大比表面负载氧化镍的硅柱磷酸锆。

It has been warranted through experiments and practical application that rare-earths-high-aluminium heat-resistant nodular iron has some intrinsic properties which are worthy of reconimandation, namely,that it will not scale after long periods of use at 1050-1100℃, will hardly break while being hammered into castings, runners or risers as the high-temperature tensile strength reaches 14-19 kg/mm2 at 800℃ or≥l3.3kg/mm2 at 900℃, with the room temperature strength close to HT 30-50 and the unnotched impact str...

本文介绍了稀土高铝耐热球墨铸铁的生产实践、化学成分；探讨了稀土作用及其用量和控制；论述了稀土和铝加入方式以及冷却速度对金相组织的影响；并对铸造工艺、铸件缺陷及分析、耐热性能及使用效果作了阐明。试验和使用证明：稀土高铝耐热球墨铸铁在1050～1100℃长时间工作不起氧化皮，热强度800℃时，14～19kg/mm~2，900℃时≥13.3kg/mm~2，室温强度近于HT30—54，a_k≈2～6kg·M/cm~2，锤击铸件或浇冒口，很难碎裂，并能机械加工。可以认为是以我国富产资源为原料，能用各种炉子熔炼、耐热和综合机械性能均较高硅、中硅中铝球铁、高铝片墨铸铁为高的一种耐热铸铁，也是镍铬系耐热材料较好的替代品。

The existence of surface dangling bonds often resulted in nano-silicon particles conglutinating with each other to form chain or ring. Nano-crystal often emerged between two particles.

由于纳米硅颗粒表面悬键的存在，所制备的纳米硅颗粒常常相互粘连成链状或环状；互相连接的的两颗粒之间出现纳米晶被共用现象。

Lead and cadmium in printing inks for the application of enamels onborosilicate glass.

用在硅硼玻璃表面瓷釉上的印刷油墨中的铅和镉；用在硅硼玻璃表面瓷釉上的印刷油墨中的铅和镉

Silicified wood say wood wood, because it we now wood of concept, and is like the stone, but it has the appearances of trees, the section has annual rings, like all other biological fossils, silicified wood fossil their try in the ancient legacy of the nature.

硅化木说木不是木，因为它已经不是我们现在概念上的木，而更象是石，然而它却有树木的外形，剖面有年轮，与其他所有的生物化石一样，硅化木化石其勉力所在便是不可再生，纯是大自然的远古遗产。

After crystallization silicide is finished, the density of the silicified wood is very high, the hardness can also reach 6.5-7.0 grades, like glass, much harder, similar to the gem (more than 7 grades) than the marble (4 grades), the timber of so high hardness, it can not moved that the wood is sawn, can't saw to cut open with the general stone material either.

在硅化结晶完成之后，硅化木的密度是很高的，硬度也可达到6.5-7.0级，与玻璃一样，比大理石(4级)要硬得多，与宝石7级以上）相似，如此高硬度的木材，木锯是啃不动的，也不能以一般石材来锯剖。

This shows that there are some boron volatilized during the sintering. It can be used to explain some novel dewatering methods.

其他学者制备的多孔玻璃一般都具有和烧结后高硅氧玻璃相近的硼、硅含量，因此没有观察到这种组分含量的明显变化，而这种变化恰好可以解释某些脱羟工艺的原理。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷