There are five principal parts of the earth system. Each part has its own collection of materials and processes.

地球系统有五个主要部分。每个部分都有自己的材料和工艺集合。

They are the work of servants and labourers who derive the principal part of their subsistence from some other employment.

它们是仆人和工人的工作， 他们的主要生活来源来自其他工作。

These, however, together with a pretty large lizard, called the ivana or iguana, constituted the principal part of the animal food which the land afforded.

然而，这些动物与一种相当大的蜥蜴，称为 ivana 或鬣蜥，构成了这片土地提供的动物食物的主要部分。

Anatomists find it useful to divide the human body into ten systems. The principal parts of each of these systems are described in this article.

骨骼系统由骨骼、骨骼之间的关节以及软骨组成。

This set-up has two principal parts: The cell that's sending the signal is the presynaptic neuron, and it transmits through a knoblike structure called the presynaptic terminal, usually the axon terminal.

这种设置有两个主要部分：发送信号的细胞是突触前神经元，它通过一个叫做突触前终端的节状结构进行传输，通常是轴突终端。

The silly creatures cannot see that it is not place which constitutes real greatness, since the man who occupies the first place but seldom plays the principal part.

愚蠢的生物看不出真正的伟大不是位置，因为居于首位却很少扮演主要角色的人。

Corn, besides, or whatever else is the common and favourite vegetable food of the people, constitutes, in every civilized country, the principal part of the subsistence of the labourer.

此外，谷物或任何其他人民普遍喜爱的植物性食物，在每一个文明国家中，都是劳动者生活资料的主要部分。

It is, however, in this earliest and rudest state of civil government only, that profit has ever made the principal part of the public revenue of a monarchical state.

然而，只有在这种最早和最粗鲁的文官政府状态下，利润才成为君主制国家公共收入的主要部分。

Food not only constitutes the principal part of the riches of the world, but it is the abundance of food which gives the principal part of their value to many other sorts of riches.

食物不仅构成世界财富的主要部分，而且正是食物的丰富使它们的主要部分价值赋予许多其他种类的财富。

By the flickering light of the torch I could distinguish contortions in the granite beds; a phenomenon was unfolding in which electricity would play the principal part; then this unbearable heat, this boiling water!

借着手电筒闪烁的光芒， 我可以辨别出花岗岩床上的扭曲。一种以电力为主的现象正在出现；然后就是这难以忍受的炎热， 这沸水！

He had suffered heavy loss by his Italian transactions; and hence the sight of an Italian was hateful to him, and the principal part in his nightmare would naturally enough be played by one of that nation.

他在意大利的交易中损失惨重。因此，他一看到意大利人就讨厌，而他噩梦中的主要部分自然是由那个民族的人扮演的。