HeLuanShi system in engineering field, pressure-blasting machine is mechanism sand, cushion material, asphalt concrete and cement concrete aggregate ideal production equipment.

在工程领域，河卵石制砂机是机制砂、垫层料、沥青混凝土和水泥混凝土骨料的理想生产设备。

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A field such as ContactDatabase.N can be an aggregate composed of up to five parts, as follows, where the integer represents the index of the respective component part.

如ContactDatabase . n之类的字段可以是最多由5个部分组成的聚合，如下所示，其中整数表示各个组件部分的索引。

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Instead of indexing many small text fields, aggregate the text into a single "contents" field and index only that (you can still store the other fields).

如果你要索引很多小文本字段，如果没有特别需求，建议你将这些小文本字段合并为一个大的contents字段，然后只索引contents。

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It followed Cardiff's League Cup first round second leg tie at Swansea's Vetch Field where Cardiff won 2-0 (2-1 on aggregate).

BBC: Supporters can be the winners

If you pave an empty field, drivers will park in whatever way is most convenient for them but that in aggregate can turn out to be random, confusing, and at times, dangerous.

FORBES: Connect

From the 2003 through the 2010 season the playoff field consisted of eight teams, with the conference semifinals played on just such a two-legged aggregate goal format, the conference finals a single game at the home of the higher seed, and MLS Cup hosted at a pre-determined often-neutral sight regardless of who was in the final.

FORBES: How the MLS Playoff Format Punishes Ambitious Teams