Each lab now has a real-time polymerase chain reaction (PCR) machine, and one lab has two machines.

每个实验室都有一台实时多聚酶链式反应机，有一个实验室有两台这样的机器。

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Each lab now has a real-time polymerase chain reaction (PCR) machine, and one lab has two machines.

每个实验室都有一台实时多聚酶链式反应机，有一个实验室有两台这样的机器。

youdao