"Red Bull Racing and I know each other from my days on the junior programme," said Karun.

“红牛和我知道我在青年队的那些日子里的表现，”Karun说道。

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'it's a positive thing, but the most important thing now is Karun gets some experience in the car and does well.

这是一个积极的事情，但现在最重要的是卡伦在汽车获取的一些经验和好。

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The main aim today was to bring two cars home and to make sure Karun could learn as much as possible over a full race distance.

今天的主要目标是确保两部赛车完赛并且让查多克在整场比赛中尽可能地多学习。

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He will replace regular driver Karun Chandhok in Friday's first practice session at the Circuit de Catalunya.

BBC: Hispania sign Austrian Christian Klien as test driver

Karun Chandhok lasted only one lap before crashing while his HRT teammate Bruno Senna managed 17 before his engine gave out.

CNN: STORY HIGHLIGHTS

Vicky Chandhok - the father of F1 racer Karun - is heavily involved in the organisation of the Delhi F1 race.

BBC: F1 supremo Bernie Ecclestone calm over Delhi race