surrogate GRE专八

The cat acted as a surrogate mum to the chicks.

这只貓当起了小鸡的妈妈。

For some people, reading travel books is a surrogate for actual travel.

些人说, 读游记可代替真正的旅行。

wives of MPs are looked on as surrogates for their husbands while the latter are at Westminster.

当议员们在威斯敏斯特时，他们的夫人被看作其丈夫的代理人。

In the 1950s Harlow compared monkeys raised by their mothers with monkeys reared by wire or terrycloth surrogate mothers.

哈娄将由母猴养大的猴子，以及由铁丝或绵布制成的代母养大的猴子作比较，发现由代母养大的猴子变得不合群且极具攻击性。

It should be noted that the method for updating multipliers is similar but different to the surrogate subgradient method, which is more robust and stable for accelerating the convergence rate.

大量的测试表明了，在新的更新乘子的公式下，收敛性和稳定性更好。