局限于的英文：
be confined to
be restricted to

参考例句：

These anomalies will be confined to the immediate vicinity of the exposed pipe
这些异常将局限于裸管的紧邻地段。

To be wasted, however, is a liability not confined to unproductive labour.
然而，浪费是一种不局限于非生产性劳动的倾向。

In surviving cattle, the infection may localize in the gallbladder and in hepatic and mesenteric lymph nodes
尚存活的牛，其感染可能局限于胆囊、肝脏和肠系膜淋巴结。

Until then only V. cholerae O1 was known to cause epidemic cholera. V. cholerae O139 Bengal is still restricted to Asia.
直至当时人们也只知道01群霍乱弧菌会引起流行霍乱。0139Bengal霍乱弧菌目前只局限于亚洲。

urbanized industry was limited primarily to the Northeast
城市工业主要局限于东北部。

The scholar narrowed his interest to Tang poetry.
这位学者的兴趣局限于唐诗。

The ore minerals are bounded by the vein walls.
矿石矿物局限于矿脉之内。

The histopathological lesion is localized at these sites.
组织病理学损伤局限于这些部位。

Do not circumscribe your study only in classes.
不要把自己的学习只局限于课堂。

(including without limitation documents, prototypes, samples, plant and equipment)
(包括但不局限于文件、照片、样本、设备等)。

confined是什么意思：
adj. 有限的；狭窄的；受限制的

The accommodation was confined, but neat.
这间房舱虽小，但是非常干净。

Uncomfortably tight and confining.
不适地紧绷的，不适地束缚的

It is beyond the confines of human knowledge.
这超出了人类的知识范围。

He was confined to bed by illness.
他因病卧床。

This is outside the confines of human knowledge.
这超出了人类知识范畴。

restricted是什么意思：
adj. 受限制的；被限定的

A restriction against smoking in schools.
禁止在学校吸烟。

Restricted access, development,potential
受限制的接触、发展、潜力

One that restricts or modifies another; a qualification.
资格限制或改变其它事件的事件；限定条件

Answers to these were restricted to a classified supplement.
这些问题的答案限制在一份机密的附录中。

For restriction on use, see the attached schedule.
有关限制用途请参阅附录。