The balance between the existing grade and proposed uses and need for specific grades is, of course, a site planning issue.

之间的现有等级，并提出了具体的用途和等级的需要，当然，一个站点的规划问题上的平衡。

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Excavation follows preparation of the site, and is performed when the existing grade must be brought down to a new elevation.

首先要挖掘及处置土方，其后是平整场地，原先的坡度必须减缓至新的仰角。

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One way oranother, the new sticker—whether based on a letter grade or some variation ofthe existing label—has to be ready for the 2012 model year.

不管是基于字母分级，还是现有标签的变种，新标签必须要在2012产品年能够投入使用。

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The decline was primarily due to the mining of lower grade ores in the existing mines.

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The so-called Khalil Gibran International Academy (KGIA) will start small a single sixth-grade class lodged temporarily inside an existing public school in Brooklyn.

CENTERFORSECURITYPOLICY: War of Ideas on the homefront

What if we could build a nuclear reactor that offered no possibility of a meltdown, generated its power inexpensively, created no weapons-grade by-products, and burnt up existing high-level waste as well as old nuclear weapon stockpiles?

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