Derived types usually need more access to the members of their parent types than users of instances do.

继承类型通常比实例用户需要更多地存取父类型的成员。

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After that, we need edit TARGET_ITEMID parameter, setting the parameter's value so that it is derived from the top level WI_ITEMID column table.

在此之后，我们需要编辑TARGET _ ITEMID参数，设置参数的值，这样就可以从顶级层次wi_itemid列表格中获得该参数的值。

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Protected visibility is for the benefit of implementers of derived types, who need a little more access to the details of their parent types.

Protected可见性为实现继承的类型提供了一些好处，因为它需要对其父类型有更多的一些存取权限。

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Like Pluto's three other moons, Charon, Nix and Hydra, they need to be assigned names derived from Greek or Roman mythology.

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With two-thirds of GDP derived from consumer spending, these monthly numbers need to be higher to keep the economy chugging.

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To find the prices of these hypothetical options, you need an implied volatility, which I derived by finding implieds on near-term options which were about 5% in-the-money.

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