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Results show that 4-oxo-β-ionone is the major product with yield of 53.5% under the conditions as follows: reaction temperature 45℃, reaction time 24 h, the molar ratio of n: n(NaClO3): n 20: 100: 3, and pH value of solution in 1-3; on the other hand, 5,6-epoxy-β-ionone is major product with yield of 25.4% when reaction temperature is 40℃, reaction time is 24 h, the molar ratio of n: n(NaClO3): n is 20: 120: 5, and pH values of solution is 3. The excessive β-ionone can be recovered by vacuum distillation for reusing again. 4-oxo-β-ionone and 5,6-epoxy-3-ionone were purified by recrystallization and silica gel column chromatograph respectively with the purity over 98%.

研究结果表明：氯酸钠氧化β-紫罗兰酮的反应主要生成4-氧代－β-紫罗兰酮和5，6-环氧－β-紫罗兰酮，经重结晶和硅胶柱层析分离，纯度高于98%；4-氧代－β-紫罗兰酮的有利合成条件是反应温度为45℃，反应时间为24h，溶液的pH值为1~3，反应物配比n：n(NaClO3)：n为20：100：3，最佳收率为53.5%；5，6-环氧－β-紫罗兰酮有利的合成条件是反应温度为40℃，反应时间为24h，溶液的pH值为3，反应物配比n：n(NaClO3)：n为20：120：5，其收率为25.4%；未反应的β-紫罗兰酮经减压蒸馏回收后可重复使用。

The leaching rate of zinc is up to 98.45%,and 95.08% indium deposited in jarosite residues can be effectively recovered.

在从较难挥发的锡和铜内分离铟的过程中，铟多数富集

Iron is recovered in the form of jarosite and ferric hydroxide that the concentrations of them determinate with dichromate method are

其中铁以黄铁钒和氢氧化铁的形式回收利用，经GB/T 223.7-2002重铬酸钾滴定法滴定其铁含量分别为72.37％，62.0％己达到可综合利用的水平。

Result: they all experienced similar jet-lag symptoms, and all recovered after about six days.

结果如下：服用者都出现了类似的时差反应，六天之后恢复了正常。

Jewell believes the team has never recovered fully from the loss of Xabi Alonso to Real Madrid last summer.

朱厄尔相信球队去年夏天随着阿隆索的离去并没有恢复元气。

Polish Jewry never recovered from this blow.

波兰犹太人再也没有恢复过来，从这次的打击。

That will determine whether these results turn out to be our 1991, the moment John Major recovered, or our 1995, the moment Tony Blair became undefeatable.

这将会确定是否这些结果又是我们的1991年，时刻梅杰收回，或我们的1995年，目前托尼布莱尔成为

Improperly closed disks can also be recovered by the software The software will likely be able to identify missing or corrupt data on the ISO/Joliet discs even if they have a damaged file system using.

不当关闭磁片也可以收回，由软件软件，将可能能够查明丢失或损坏，数据和有关国际标准化组织/ joliet光盘，即使他们有一个损坏的文件系统使用。

Juliana: He's a famous doctor that recovered from a serious disease with the use of laughter.

朱莉安娜：他是一位用笑使自己从重病中痊愈的名医。

Result Four bands in the DGGE profiles of total bacterial DNA of Tibetan kefir were not recovered by cultivation.

DGGE指纹图谱显示混合菌群中细菌有4条条带无对应的纯菌株，而纯菌株中有2株在混合菌群的图谱上没有相应的条带。

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。