If you require sales copy, you should only work with a web copywriter with knowledge in split and multivariate testing.
如果你需要销售文案，你应该找一个了解分离测试和多元测试的知识的文案。
2
Split testing: If you require sales copy, you should only work with a web copywriter with knowledge in split and multivariate testing.
分离测试：如果你需要销售文案，你应该找一个了解分离测试和多元测试的知识的文案。
3
After research on the fractionation of softwood BC TMP pulp fiber by a cylindrical hydrocyclones, a new knowledge of the relationship between split ratio and flow field in hydrocyclones was gained.