The discovery of strange particles lead to a generalization of the law of nucleon conservation.
奇异粒子的发现导致了核子守恒定理的推广。
In this chapter we develop the implication's of momentum conservation in the motion of a collection of particles.
在本章中，我们要揭示一个质点集体作运动时动量守恒的含义。
For saving charge of transportation and prolonging conservation, fluidized bed with inert particles was used to dry the bacteria, and the activity of dried bacteria was held.
为节省运输费用及延长菌液保存期，本试验用惰性粒子流化床对生物制剂进行干燥，固体菌粉末不失活性。
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