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Wesynthesized (2E, 6E)-farnesol 12 starting from compound 24 by three steps.The optical sesquiterpenoid 14 was synthesized starting from--citronellol with a 28% overall yield, and the absolute configuration of 14 wasinfered (3R, 7S)-3, 7, 11-trimethyl-10-oxododecanoic acid on the basis of thechirality of starting material and biogenic relation.

以手性--香茅醇为原料，经七步反应也合成了旋光活性的目标分子14，结合生源关系，推测天然产物14的立体结构为(3R，7S)-3，7，11-三甲基-10 氧代-十二碳酸；对手性中间体34经脱除羰基得到手性天然产物(3R.7RS)-六氢法呢醇13。

As an extension of this subject, mechanical vibration, signal processing and fault diagnosis were synthesized.

大型旋转机械的在线监测与故障诊断已在石化、电力等行业获得了广泛的应用。

A new sort of MCM-41 mesoporous molecular sieves are synthesized with waterglass and potassium feldspar powder as main materials.

对MCM-41经Al3+搀杂后合成的-MCM-41的水热稳定性和新型介孔分子筛SAN-01的水热稳定性进行了检测。

Several kinds of 4-arninopyrazolone derivatives were synthesized. The reactions between those derivatives and phenol under potassium ferricyanide were used to enrich and determine phenol by an online capillary tube coupled with flow injection system with our own design.

本文合成了几种4-氨基吡唑啉酮衍生物，比较了它们在铁氰化钾存在下与苯酚及其衍生物的反应，并利用这些反应生成的化合物於自行设计的流动注射分析系统，实现了总酚在线分离富集。

Several kinds of 4-aminopyrazolone derivatives were synthesized. The reactions between those derivatives and phenol under potassium ferricyanide were used to enrich and determine phenol by an on-line capillary tube coupled with flow injection system with our own design.

文章摘要：本文合成了几种4-氨基吡唑啉酮衍生物，比较了它们在铁氰化钾存在下与苯酚及其衍生物的反应，并利用这些反应生成的化合物于自行设计的流动注射分析系统，实现了总酚在线分离富集。

The TiC/Cr18Ni8 steel bonded carbides were in situ synthesized by vacuum sintering with mixed powders of iron,ferrotitanium,ferrochromium,colloidal graphite and nickel as raw materials.

钢结硬质合金是以钢为粘结相，以碳化物为硬质相，采用粉末冶金方法制备的一种介于工具钢和普通硬质合金之间的铁基复合材料。

It is shown that Zn0.75Co0.25O films grown at low temperatures (250 ~ 350 ℃) are of single-phase wurtzite structure and films synthesized at 300 or 350℃ reveal room temperature ferromagnetism.

第五章研究了生长温度对Co掺杂的ZnO DMS薄膜性能的影响。300℃与350℃条件下生长的薄膜显示出铁磁性。

Using ferrotitanium, carbon and iron powder as staring materials, TiC-Fe composite coatings were synthesized and deposited by RFS.

本文采用钛铁粉、石墨粉、铁粉为主要原料，成功制备了TiC-Fe复合涂层，并研究了喷涂过程中的反应历程。

A kind of Fe-Ti-C composite powder for reactive spraying was prepared with ferrotitanium and sucrose as raw materials. TiC/Fe composite coatings were synthesized and deposited by reactive plasma spraying.

以钛铁粉、铁粉和蔗糖为原料，采用前驱体热分解复合技术制备了Fe-Ti-C系反应热喷涂粉末，并通过普通等离子喷涂技术原位合成并沉积了TiC/Fe金属陶瓷复合涂层。

TiC/Fe andC/Fe composites were synthesized by in situ sintering of mixture of titanium powder,ferrovanadium powder,carbon powder,molybdenum-iron powder,errochromium powder and iron powder.

以钛粉、铁粉、钒铁粉、铬铁粉、钼铁粉及石墨粉为原料，通过原位烧结制备了C/Fe复合材料。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。