它们通常被分为三大类——石头、陨铁石和铁。
They are generally classified into three broad categories—stones, stony irons and irons.
他继续按照他的分类学，把鲸按大小分为三大类或三本书。
Continuing in his taxonomy, he groups whales into three major categories, or books, by size.
英国人的姓氏主要分为四大类：父姓、职业姓、描述性的和本地姓。
British surnames fall mainly into four broad categories: patronymic, occupational, descriptive and local.
商店扒手可分为三大类：专业人士、有意为之的外行和无法控制自己的人。
Shop-lifters can be divided into three main categories: the professionals, the deliberate amateurs, and the people who just can't help themselves.
陶艺被分为三大类——陶器、炻器和瓷器——包括器皿，屋顶瓦片等建筑制品，以及模型物体和造像。
The ceramics fall into three broad types—earthenware, stoneware, and porcelain—for vessels, architectural items such as roof tiles, and modeled objects and figures.
他们把雪分为四大类，如地上的雪、飘在空中的雪、积雪和雪堆。
They divide snow into four main categories, such as snow lying on the ground, snow floating in the sky, snow piling up, and snow piles.
蝙蝠主要有两大类，人们认为它们是各自独立进化的，但都来自同一个祖先。
There are two main groups of bats, which are believed to have evolved independently of each other, but both from a common ancestor.
象分为两大类—非洲象和印度象。
There are two major kinds of elephants – African and Indian.
这些数据库脚本分为两大类。
The database scripts are grouped under these two categories.
G·W·波特把非言语传播分为四大类。
G. W. Porter divides non-verbal communication into four broad categories.
他们根据五大类11项因素制定本排行榜。
They use 11 factors in compiling these rankings, each of which falls into one of five general categories.
hypervisor可以划分为两大类。
剧本可以分为原创和改编两大类。
场景可分为两大类：功能性场景或支持性场景。
The scenarios fall into two categories: functional or supporting.
发现模式可以分为两大类：有重点的和无重点的。
Patterns of discovery fall into two general categories: focused and unfocused.
军事卫星通信代表了防御卫星的一大类。
MilSatCom represents the largest category of defense satellites.
VANCL的产品目前分为服饰和家居产品两大类。
VANCL products currently divided into two major categories of apparel and home products.
这些产品分为两大类：ISAPI过滤器和外部设备。
They fall into two categories: ISAPI filters and external devices.
IT能力可归为四大类：信息、自动化、协调、联系。
It capabilities fall into four general categories: information, automation, coordination, and connectivity.
匹配分为两大类：通用匹配和特定于协议的匹配。
The matches are divided in two major categories: generic matches and protocol-specific matches.
新的召回机制中涉及了五大类产品，包括食品和玩具。
The mechanism covers five types of products, including food and toys.
在规划指标上，分为预期性和约束性两大类。
The targets in the Outline (draft) are divided into two types: anticipated and obligatory.
XML文档分为两大类：以数据为中心和以文档为中心。
XML documents fall into two broad categories: data-centric and document-centric.
完善分组——对于每一全大类尽可能地把小类分得更细。
Refine the subgroups - For each of the larger categories, define the subgroups even further.
苹果要求开发商将它们的软件发布到20大类中的某一类中。
Apple requires developers to put their app into one of 20 categories.
总的来说，人们谈论的是两大类颜色：暖色和冷色。
In general, people talk about two groups of colors: warm colors and cool colors.
约束竞争的权利结构可分四大类，而任何社会通常是四类并存的。
Rights structures restraining competition are of four broad types, and they generally co-exist in any society.
约束竞争的权利结构可分四大类，而任何社会通常是四类并存的。
Rights structures restraining competition are of four broad types, and they generally co-exist in any society.
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