Especially , thepresence of Sn in TiO _ 2 - SnO 2 - SiO 2 catalyst promotered the selectivity to DPO.

经 Sn 改性后的复合型TiO_2-SnO2-SiO2催化剂,使DPO的选择性明显提高.

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Accordingly , TiO _ 2 - SiO 2 catalysts showed high selectivity to target products , DPO.

TiO_2主要以 Ti -O-Si键的形式存在,表现出更多的弱酸性,因而有利于DPO选择性的提高.

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TS - 1 catalyst showed high selectivity of MPO and DPO during transesterification of DMO with phenol.

TS -1 在催化DPO合成反应中表现出良好的选择性,弱的L酸中心是DPO合成反应的活性中心.

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And introduced a new instrument - DPO 3000 Series Digital Phosphor Oscilloscope.

并且介绍了一种新的仪器 —— DPO3000系列数字荧光示波器.

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MPO and o - DPO activity in group B were significantly stronger than those of group N.

另外,吸正常血组的MPO和oDPO酶活性明显高于不吸血组(P<0.05).

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Diphenyl carbonate ( DPC ) was synthesized by decarbonylation of diphenyl oxalate ( DPO ) over Ph 4 PCl catalyst.

研究了以Ph4PCl为催化剂,草酸二苯酯脱羰基合成 碳酸 二苯酯反应.

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DPO 3000 series provided operation of brand - new USB Plug and Play and PC join capability.

DPO3000系列提供了全新的USB即插即用操作和PC连接能力.

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