1. They allow no substitutions on the club luncheon.
   规定午餐的套饭不得换菜。
2. We use saccharin in substitution for sugar.
   我们用糖精代替糖。
3. In this reaction,besides substitution products thiophenol etc,the reduction product benzene is formed.
   反应中，除生成笨硫酚等取代产物外，还生成还原产物苯。
4. The ZnO and Cu product can be obtained through ammino complexation and method of substitution.
   研究采用氨络合转换方法，制备了医用或化妆品活性氧化锌等产品。
5. This article introduces relation, substitution and implement of radial run-out tolerance and axiality tolerance with legend and production process.
   径向跳动公差与同轴度公差是形位公差项目中常用的位置公差。
6. In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst.
   本文利用三氯化铝作催化剂,废聚苯乙烯与溴发生亲电取代反应合成溴化聚苯乙烯阻燃剂。
7. The large deflection problem of cantilever beams was studied by means of the biparametric perturbation method and the first order derivative substitution from pseudolinear analysis approach.
   利用拟线性分析方法中的一阶导数代换对基本方程进行了简化处理,将基本的微分积分方程转化为非线性代数方程组,并结合双参数摄动研究了悬臂梁的大挠度问题。
8. CONCLUSION: Base pair substitution mutation and frame shift mutation were caused by folpet in Ames test.And DNA breakage in human PMNC might be induced by folpet.
   灭菌丹可引起鼠伤寒沙门氏菌碱基置换和移码突变，并可能损伤人外周血淋巴细胞DNA的完整性。

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