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The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20~1000重量百分比计20~100%的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型;再经过0.1~3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1~8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20~90℃下处理1~8小时;然后在温度为400~700℃条件下水蒸汽处理2~15小时;再用0.1~3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20~90℃条件下浸渍2~5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题,可用于甲醇转化制丙烯的工业生产中。

Results The average time of expanding to the rating volume of expander was 26 days and 51 days respectively for the new expansion method groupand expasion method group,When total expansion finished before operation the percent age of natural salt injection beyond the rating volume were 92.4%, 27.12%, respectively.

结果 NEM(new expansion method,新型扩张法)和GEM(general expansion method,常规扩张法)扩张至额定容量所需要的平均时间分别为26 d和51 d;全部扩张完成后两种扩张法扩张器的实际注水量超过额定容量的百分比分别为 92.41 %和27.12 %。

The CNTF and FGF2 positive cell number and the positive area percentage, as well as the number of neuron and neuroglia calculated by immunofluorescence analysis in the spinal cord.

将嗅鞘细胞移植入脊髓半横断SD大鼠,观察术后7天和21天嗅鞘细胞在脊髓内的存活情况,并对脊髓组织切片进行CNTF和FGF2免疫荧光组织化学染色,计数阳性细胞并计算阳性面积百分比

In IPF, patients, whose duration of symtoms ≤3 months, had neutrophile count, IgG/A IC/A and HA/A higher than those, with symtoms≥24 months, and in Sar group, it was shown that HA、HP and TNF were increased in stage Ⅱ and stage Ⅲ.

与病程、病期的关系:IPF患者病程≤3月者,中性粒细胞百分比,IgG/A、IC/A、HA/A均较≥24月者明显增高(P<0.05);S〓;组中HA、HP、TNF则提示Ⅱ、Ⅲ期病例明显高于Ⅰ期病例。

According to the weight percent, the copolymer composition comprises: 25 percent to 99 percent of the vinyl aromatic monomer; 0 percent to 30 percent of the en-unsaturated nitrile monomer; 1 percent to 50 percent ene dicarboxylic acid derivative monomer.

这种共聚组合物按重量百分比包含:25至99%的乙烯基芳香族单体;0至30%的烯属不饱和腈类单体;1至50%的烯属二元酸衍生物单体。

Rate or as a nominal amount.

税收冻结禁止任何税率百分比或面额数量的提升。

A nomogram was established to allow the percentage of predicted exercise capacity to be estimated on the basis of age and the exercise capacity achieved.

建立了列线图,以在年龄和测得运动能力基础上估计运动能力预测值的百分比

The nomogram was then used to determine the percentage of predicted exercise capacity for both the original cohort and a referral population of 4471 women with cardiovascular symptoms who underwent a symptom-limited stress test.

列线图被用于在原始队列及4471例进行了症状限制的负荷试验、有心血管症状的女性中确定运动能力预测值的百分比

What is the percentage of women in China that enjoy seeing pictures of nude women.

什么是喜欢看裸体妇女的图片妇女的百分比在中国。

After finishing learning the topic, the user has a chance to see the percentage of passes in particular items and the number of repetitions needed for a complete pass.

后整理学习这个主题,用户有机会看到的百分比及格,特别是项目和人数,重复需要一个完整的通过。

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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。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。