in genral crawl deapth mean's how much google crawler's indexing webpage's with in a website
Yes, but let's make this sentence more understandable for the readers here. It is "In general, crawl depth means how many webpages the Google crawler's indexing within a website.
" (And also, we should keep in mind the rest of the search engines -- Yandex, Yahoo, Bing, Baidu, Naver, Sogou, etc. It's not only Google.)