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The condensation reaction,in which the yield of intermediate product after refining process was more than 90%,used iso-butylaldehyde and formaldehyde as materials,Et 3N as catalyst.The hydrogenation,in which the conversion of hydroxypivaldehyde and selectivity of NPG were respectively 99% and 95%,used Cu-ZnO as catalyst,and ethanol as solute,meanwhile in the hydrogenation,the impurity in material could also ...

缩合反应采用异丁醛和甲醛为原料，三乙胺为催化剂，在 60℃左右反应，缩合产物经减压蒸馏和结晶、干燥，得到收率为 90 %以上的中间体羟基戊醛；加氢反应采用自制的Cu -ZnO催化剂，乙醇为溶剂，在 15 0℃将HPA加氢生成新戊二醇，HPA转化率为 99%，新戊二醇收率在 95 %以上，而且HPA缩合反应的副产物在加氢反应中也转化为新戊二醇。

Null ISO TC184/SC4 WG3 N1223,STEP - NC Implementation- ARM or AIM null , null,Xu X%Mao J A STEP - Compliant Collaborative Product Development System null , 2004,null

刘日良%张承瑞%薛强 STEP-NC数控程序的信息表达与提取方法研究计算机集成制造系统-CIMS ， 2004，12

The contents of this course include: the mathematical basis of FEM, the generic solution principles and expressions of elastic mechanics issue, the construction of element and its interpolation function, iso-parametric element and numerical integral, solution of linear equations, some practical issues of FEM modeling, brief introduction to typical commercial FEM packages, FEM for truss, plate blending and shell, and FEM for heat exchange and dynamics.

课程内容主要包括：有限单元法的数学基础、弹性力学问题有限单元法的一般原理和表达格式、单元和插值函数的构造、等参单元和数值积分、线性方程组解法、有限元建模的若干实际问题、典型商用有限元分析软件简介、杆件结构力学问题的有限单元法、平板弯曲问题的有限单元法、一般壳体问题的有限单元法、热传导问题的有限单元法、动力学问题的有限单元法等。

Light paraffin iso-merization plays an important role in improving domestic motor gasoline octane number.

目前我国车用汽油的主要成分是催化裂化汽油，离新配方汽油要求相距较大。

Companies participating in the ISO 9001 certification and is working OIA staff qualification certificates.

参与公司ISO9001认证工作并获得内审员资格证书。

Oki Electric Industry Company says it has just added two production sites in China to its consolidated ISO certification program for environmental management.

冲电气工业公司说，它刚说， 2个生产基地，在中国其综合国际标准化组织的认证程序环境管理。

The content of olefin decreases from 42% to 12%. The content of iso-paraffin increases 17%.

同时催化剂在非临氢条件下对FCC汽油芳构化也有很好的反应性能。

In the ISO/OSI model, this is at the application layer.

在ISO/OSI模型，这位于应用层。

With the same final brightness about 84%ISO, O~*P pulp consumed less active chlorine and peroxide compared with the OP pulp; although O~*P pulp needed a higher beating energy,the tensile index,tear index and burst index of the pulp were better than those of OP pulp at the same ~oSR value.

当漂白浆的白度均为84%ISO左右时，与CK2 OP漂白浆相比，CK2 O~*P(O~*为表面活性剂S3强化的氧脱木素)漂白浆所消耗的漂白化学品的量更少，即氧脱木素段添加合适的表面活性剂能有效降低漂白化学品用量。

Results. In all 4 patients, Iso-C 3-dimensional computer navigation was successful in accurate localization of the osteoid osteomas.

结果：在4名患者中，ISO-3D计算机导航对骨样骨瘤精确定位成功。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。