rectangular block

基本解释

As an efficient fire dynamics simulator, FDS was limited to construct the rectangular block.
作为一种高效的火灾模拟软件，在对非长方体隧道进行火灾模拟时有很大局限性。
Specifies that an element defines a block-level table: it is a rectangular block that participates in a block formatting context.
指定了一个元素，定义了一个块级表格：它是一个长方形的块，并参与块格式化内容。
jiaojihhh.blog.163.com
The patterns covering the face of the rectangular block also represent a previously unknown ancient writing system — a rare find in archaeology.
布于矩形石板的图案，显示了一种以前未知的古老文字系统——一个罕见的考古学发现。

With the sets of basic specifications and features set in stone, HTC's engineers can then offer the right phone sizes that meet the carriers' requirements, as well as showing a relatively bland rectangular ABS block as an indication on how much space is needed to pack all the components.
ENGADGET: HTC talks smartphone design: from inception to final product
At the Frequencies media summit in Seattle over the last two days, HTC walked us through the fine details on how its smartphones are developed, going from the boring rectangular ABS block to the more refined plastic mockups that are presented to carriers and focus groups -- the findings of which then shape the final product.
ENGADGET: HTC talks smartphone design: from inception to final product