真空

zhēnkōng

vacuum; (fig.) empty space or situation

HSK 7-9

Pronunciation

zhēnkōng

科学家在实验室中制造出接近完美的真空。

kēxuéjiā zài shíyànshì zhōng zhìzào chū jiējìn wánměi de zhēnkōng.

Scientists created a near-perfect vacuum in the laboratory.

One fixed sample

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