This unit describes the basic skills required to maintain and preserve cell cultures: maintaining aseptic technique, preparing media with the appropriate characteristics, passaging, freezing and storage, recovering frozen stocks, and counting viable cells. (c) 2007 by John Wiley & Sons, Inc.
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What are the costs for embryo freezing, storage, and transfer?
胚胎冷冻，储存和移植的费用是多少？
Discribes the theory of air refrigerator and its application to train air-conditioning, freezing and cold storage, aircraft air-conditioning and large low temperature environmental laboratory.
主要叙述空气制冷机的原理及其在列车空调、冷冻冷藏、飞机空调和大型低温环境试验室中的应用。
Latent heat storage system based on phase change materials' (PCMs) melting and freezing is particularly suitable for solar energy heating, peak-shift of electrical demand and heat recovery.
基于相变材料熔化和凝固过程的相变潜热储能系统适用于太阳能加热、电力的‘削峰填谷’、热能回收。
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