The aggregates, composed of the primary particles, retain sufficient water and nutrients.

由原颗粒组成的团聚体要能保持充分的水分和养分。

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The production efficiency of family events for different primary particles and its relationship with primary energies are given.

给出了不同能区原初宇宙线各种成分产生族事例的效率及其与原初能量的关系。

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In the second stage, sintering of primary and secondary particles occurs simultaneously, but the sintering of the compact is controlled by the primary particles.

在烧结的第二阶段，一级与二级颗粒的烧结同时进行，但压块的烧结是被一级颗粒的烧结所控制。

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And in fact those same sulfate particles are a primary ingredient in acid rain, so loading the atmosphere with them is probably not a good idea either (although geoengineering proponents have suggested doing exactly that to help cool the climate).

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