retarders

The influences of retarders, admixtures and water retention agents on the performance of β-hemihydrate gypsum plaster were study by a series of experiments in this paper.

通过实验研究了缓凝剂、掺材及保水剂对β半水型粉刷石膏性能的影响。

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Retarders Used to Solve the Problems of the Brake Drum Overheat and Brake Shoes Wearing Fast

加装缓速器以解决制动鼓发烫并延长制动蹄片寿命

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Then use this system, from two aspects which involve the spectrum characteristic of retarder and sensibility of retardation to the incidence angle, we test the practical performance of several kinds of achromatic retarders separately, the results are congruous to the theory analyses basically.

然后应用该系统，从延迟量的光谱特性及对入射角的敏感性两方面，对几类消色差相位延迟器分别进行了实际的性能测试，测试结果同理论分析基林8符。

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The influences of retarders ( sucrose and glucose) on hydration and hardening process of cement with high cementing property ( HCC) through comparison of different kinds of cements are studied.

对比不同种类水泥，研究了缓凝剂（蔗糖及葡萄糖）对高胶凝性水泥水化硬化的影响。

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Some retarders permanently weaken the concrete.

某些缓凝剂对混凝土起长期的弱化作用.

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Double-critical effect of retarders on the hydration and hardening process of cement with high cementing property

缓凝剂对高胶凝性水泥水化硬化的双临界影响效应

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The authors introduce the troubles inspection methods of the manual control switch, speed control switch, gas-pressure control switch and relay box of electromagnetic retarders used in Yutong coaches.

介绍宇通客车电涡流缓速器手控开关、速度控制开关、气压控制开关、继电器盒等故障的检测方法。

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Study was made of auxiliary-plasticizing effects of 5 retarders on cement-superplasticizer-retarder ternary compound.

研究了5种缓凝剂在水泥、 高效减水剂 和缓凝剂三元复合体系中的辅助塑化效应.

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