Such exercises provide the PLA opportunities to improve capabilities and gain operational insights by observing tactics, command decision-making, and equipment used by more advanced militaries.

通过观察更先进国家的战术、指挥决策及装备等，解放军在这些联合演习中获得了提高自身能力和实战经验的机会。

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Making PLA from petrochemicals, the leading source of the carbon that lies at the heart of plastic's makeup, is too costly and complicated.

FORBES: Shucking Petroleum