index system

常见例句

During the 1920s Fisher became rich from the invention and sale of a card-index system.
在20世纪20年代，费雪因为发明和销售卡片索引系统成了富翁。
If weather conditions deteriorate, a panel of experts uses an index system to determine if crops will no longer be viable.
如果天气状况恶化，一个专家小组就使用索引系统来决定庄稼是否将存活下去。
The first batch of statistics is expected to be officially released before the end of 2007. China’s first official index system for E-commerce statistics is under construction.
目前正与中国国家统计局联合开展电子商务统计，第一批统计数据预计在2007年年底前可正式对外发布，中国第一个权威的电子商务统计指标体系正在逐步形成。

They used a system of measurement called the Body Mass Index to define words like obese and overweight.

According to the China Real Estate Index System, prices of second-hand homes rose 2.81% from February this year.
FORBES: More China Cities To Puncture Holes In Housing Bubble