n. 前辈,前驱,先锋,前任;预兆,先兆,初期形式;[核]前驱波,初级粒子;预报器
网络 前体; 前驱物; 先兆
He said that the deal should not be seen as a precursor to a merger.
他说这次交易不应该被看作是合并的前兆。
Error is often the precursor of what is correct.
错误常常是正确的先导。
We talked about the artificial hip, which is a modern precursor of the splint I talked about before.
我们说到的人造髋关节就是我之前讲过的夹板的现代前身。
Precursor ion scanning refers to monitoring for a specific loss from the precursor ion.
前体离子扫描是指监测前体离子的特定损失。
You may have to control the precursor gases.
你还得控制在反应中产生它们的气体。