构成的

A chair consists of a seat with a back.

椅子是由椅座和椅背。

Clouds are formations of condensed water vapour.

云是由凝聚水蒸气。

History is nothing more than a tableau of crimes and misfortunes.

历史不过是由罪恶和灾难静止舞台造型罢了。

Corneous layer is formed by the horny protein cell of insensate active.

角质层是由无生命活性角朊细胞。

These tumors are derived from the ovarian stroma and often have a component of thecoma.

此种瘤来源于卵巢间质，通常是由卵泡膜细胞。

The prototype construction meaning throws light on the ambiguity of weak extro-orientational verbs, exocentric verbs.

由于原型句式语义影响，弱外向动词和离心动词双宾句形歧义。

The boats in the harbor make a beautiful scene.

港内船只了美丽景色。

The family is the basic unit of society.

家庭是社会基本单位。

The four-building complex will include a library, a museum, an auditorium and a planetarium.

由四栋房屋所这座综合建括一个图书馆、一个博物馆、一个礼堂及一个天文馆。

This is the formation of a new government.

这是新政府。

Mountains are made of rock.

山脉是由岩石。

The islands are volcanic.

这些岛屿是由火山。

The harmony of sea and sky makes a beautiful picture.

海天一色一幅美丽图画。

The principle of the atom lens using a hexapole magnetic field and its aberration has been discussed.

分析了由六极磁场原子束磁透镜原理及像差。

A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.

一个水分子是由两个氢原子和一个氧原子。

Leather is by ossein type piece the material of poriferous fiber shape that poriferous matrix makes record.

皮革是由骨胶原类型片状多孔基质多孔纤维状物质。

Water is made up of atoms of hydrogen and oxygen.

水由氢和氧原子。

The funds of the association shall comprise of members' subscriptions.

协会基金由会员捐款。

Canals and rivers form the inland waterways of a country.

运河和江河了一个国家内河水路。

That's an integral part of the country.

那是国家所必需一部分。