It is special important meaning that Deep - hole blasting With bottom Gap Charging is used to protect bottom rock from breaking, to decrease block ratio and to improve blasting efficiency.

深孔爆破孔底空隙装药在有效地保护底板岩层免遭破坏，减少大块率，提高爆破效率等方面均具有重要的意义。

youdao

Magnetic working substance area is circular arc with certain radial thickness, and has certain gap with stator permanent magnetism block.

磁工质区域为圆弧形，有一定的径向厚度，与定子永磁块间留有一定的间隙。

youdao

They cap the igloo by dropping a keystone, or block with edges cut wider above than below, into the remaining gap in the roof, and "grout" the gaps between blocks of snow with additional snow.

人们用拱顶石来盖顶，或者把雪块削切得上边缘比下边缘更宽，放进剩下的屋顶缺口里，再用雪来塞满雪块间的缝隙。

youdao

McCollough walks away after spearheading a drive to move or refurbish a block of Circuit City stores, an effort designed to close a quality gap a with Best Buy franchise seen as having better locations, brighter and less cluttered stores, and top-of-the-line service led by its famed Geek Squad customer support operation.

FORBES: Magazine Article