From these studies, 95% were based on type III or iv evidence (mainly descriptive studies or case reports). Only 3% were based on type II evidence and 2% on type I evidence.

从这些研究中，95%依据第三或第四类论据(主要描述相关研究和病例报道)，只有3%的研究依据第一类论据，2%依据第二类论据。

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Certification in wastewater collection and wastewater treatment (level I, II, III or IV depending certification level of the plant) is required for wastewater treatment plant operators.

污水处理厂的运营商要求具备污水收集和污水处理认证(根据工厂认证等级分为i, II, III或IV级)。

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9 sample types: type I, type II, III, IV (optional) meet the standard test sample standard processing accuracy requirements.

试样类型：Ⅰ型、Ⅱ型、Ⅲ型、Ⅳ型（选配）符合试验样条标准加工精度要求。

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French universities are named very poetically, Paris I,II,III,IV,V,VI, all the way through XIV, which is a real hole, or XIII is probably the worst.

巴黎的大学命名得都很有诗意,巴黎第一大学,第二大学,第三大学,以此类推,一直到第十四大学,这是真实存在的,第十三大学可能是最差的

耶鲁公开课 - 1871年后的法国课程节选

The Annapurna Circuit features several famous Himalayan high peaks including Manaslu, Dhaulagiri and Annapurna I, II, III and IV, with Annapurna I towering at 8, 091 metres as the 10th highest peak in the world.

BBC: Nepal��s shrinking Annapurna Circuit