夹心保温：其保温材料夹在外墙的中间，墙体的构造复杂，仍有冷桥存在。
Insulation: insulation material sandwiched between the outer wall of the intermediate, wall complex structure, there are still existing cold bridge.
介绍了新型冷板冷藏车的技术参数、特点、车辆构造及关键技术研究。
Described are the technical parameters, features, structure and key technology research on the new type cool plate refrigerator car.
用四个点电荷构造一个简单、新颖的静电势阱，并基于含时薛定谔方程和有限差分时间域方法，研究冷原子在该势阱中的量子力学效应。
We suggest a novel trap of trapping a neutral atom with static electric field of four point charges, and discuss the quantum effects of the cold neutral atom in the trap.
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