会话锁是指那些跨越多个工作事务单元的锁，它们涵盖某些业务流程的整个持续期间。
Session locks are those that span multiple transactional units of work; they cover the entire duration of some business process.
然而，我们发现，长度约为20个字符左右、相对较“弱”的密码也已经能够使得针对单一账户的暴力破解变得不现实：只要有“三振出局”的规范即可。 （译者注：原文的“threestrikes”typerule 指的应该是连续三次输入错误密码就会暂时锁死账户，具体可参考此处。）
However, we find that relatively weak passwords, about 20 bits or so, are sufficient to make brute-force attacks on a single account unrealistic so long as a “three strikes” type rule is in place.
锁单是指，在交易者的同一账户里，同时保持着同一货币对的多头仓位和空头仓位。
Single lock refers to the same person in the transaction account, while maintaining the same currency for long positions and short positions.
踹门足迹是指犯罪嫌疑人用足撞击门，破坏锁体或门，使门锁分离或门板与门框分离而遗留在门面上的足迹。
Tracks of kicking doors are marks produced in the surface of the door by suspects who kick doors by feet to destroy the lock or door to tear them or split the door from the frame.
踹门足迹是指犯罪嫌疑人用足撞击门，破坏锁体或门，使门锁分离或门板与门框分离而遗留在门面上的足迹。
Tracks of kicking doors are marks produced in the surface of the door by suspects who kick doors by feet to destroy the lock or door to tear them or split the door from the frame.
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