An example might be at the customer level in a financial system: one coarse grained lock could be to lock all accounts for the customer, another could be to lock all insurance policies.
例如，在财务系统中的客户级别上：一个粗粒度锁会锁定该客户的所有帐户，另一个锁则可锁定全部保险策略。
Whereas futures contracts lock in the participants to buy or sell an asset, an option is more like insurance.
期货合同是买卖资产的合同，而期权合同则是如同保险。
She has a lock but she bought another one as an additional insurance against thieves.
她有一把锁，但她又买了一把作为防范盗贼的另外一个保险措施。
I have one lock but I bought another as an additional insurance against thieves.
我有一把锁，可是另外又买了一把作为附加的防盗保障。
I bought another lock as an additional insurance against thieves.
我又买了一把锁，以加强防贼的安全措施。
This machinery insurance-type role to ensure that the delayed action only in the lock chamber when the pressure dropped to a certain value.
这种机械保险式的延迟作用能确保开锁动作只有在膛压下降到一定数值时才发生。
This machinery insurance-type role to ensure that the delayed action only in the lock chamber when the pressure dropped to a certain value.
这种机械保险式的延迟作用能确保开锁动作只有在膛压下降到一定数值时才发生。
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