The second byte of "01" indicates that this is a private key operation (e.g. it's a signature).

第二个字节“01”说明这是一个私钥操作(如，它是一个签名)。

youdao

Rotary knob and touch key operation.

旋钮和触摸按键操作。

youdao

Transport a key operation in Coal Mine, unattended.

实现煤矿运输一键操作，无人值守。

youdao

Like PSI it should be a low-key operation, stripped as much as possible of politics and entanglement with bureaucracy.

CENTERFORSECURITYPOLICY: Pirate outlaws, outlaw state

Delyn MP David Hanson, whose constituency includes Flint, said he was extremely disappointed at the potential loss of a key operation.

BBC: Jobs threatened at Kimberly-Clark factory in Flint

The company added that its Coleshill Mill site was a "key operation" in the supply of branded toilet roll, facial tissue and wipers.

BBC: Jobs threatened at Kimberly-Clark factory in Flint