碘的

The SmI2-mediated reductions of ketones,imines and α,β-unsaturated esters have been shown to be instantaneous in the presence of H2O,an amine and in THF.

在水、胺以及四氢呋喃存在下二碘化钐参与的还原酮、亚胺以及α，β不饱和酯的反应能够在瞬间完成。

Both electronic and steric effects were observed for the homo coupling of aryl iodides. Electro-withdrawing and ortho substituents gave desired products in low yields.

在取代碘苯的偶联反应中观察到电子效应和位阻效应的影响，吸电子基取代和邻位取代对反应不利。

In Chapter III, Fluoroalkylated triazo-compounds (RFCH2N3) were synthesized from fluoroalkylated alcohols (RFCH2OH), which were synthesized from fluoroalkylated iodides.

在第三章里，我们以全氟碘代烷RFI为原料制备得到结构为RFCH2OH长碳链的醇，进一步合成结构为RFCH2N3的氟烷基叠氮化合物。

In particular, a process for the synthesis of nanopowders of various materials such as metals, alloys, ceramics and composites by induction plasma technology, using organometallic compounds, chlorides, bromides, fluorides, iodides, nitrites, nitrates, oxalates and carbonates as precursors is disclosed.

具体地，公开了一种通过感应等离子体技术合成各种材料，例如金属、合金、陶瓷和复合物的纳米粉末的工艺，使用有机金属化合物、氯化物、溴化物、氟化物、碘化物、亚硝酸盐、硝酸盐、草酸盐、碳酸盐作为前驱体。

Depending on the energy setting for each x-ray tube,"iodine has very different absorption characteristics in the myocardium," Schoepf said.

依赖于对各个x球管的能量调整，&心肌层碘吸收特性曲线的差别很大&， Schoepf说。

Depending on the energy setting for each x-ray tube,"iodine has very different absorption characteristics in the myocardium," Schoepf said.

依靠于对各个x球管的能量调整，&心肌层碘吸收特性曲线的差别很大&， Schoepf说。

A high spectral resolution lidar was used for low level atmospheric temperature measurement. Based on the iodine filter's high absorption property for aerosol, the HSRL retrieves low level atmospheric temperature with Rayleigh backscattering signal intensity.

基于碘分子滤波器对大气气溶胶散射的强吸收特性，滤除低层大气中气溶胶散射的影响，从而利用分子瑞利后向散射信号强度反演低层大气温度。

Objective In order to study the testing numerical value of urine iodine and hair iodine is stable or not.

本文《相同个体的尿样和发样在不同条件下碘测定值的比较》关键词：免费论文，论文下载

Objective In order to study the testing numerical value of urine iodine and hair iodine is stable or not.

相同个体的尿样和发样在不同条件下碘测定值的比较》由网友提供或由易博网于网络收集与整理，其版权属于原作者。

The Influence of heat in the acid value, the peroxide value and the iodine number of prepurged roast eel oil at 70℃ and 95℃ in normal and vacuum condition were investigated.

探讨了 70℃和 95℃下，在常压和真空条件下加热过程对预纯化烤鳗油的酸价、过氧化值和碘价的影响。

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。