Re: special search engine
[b] chemistry: [/b]
Merck Index (online edition: [url=https://www.rsc.org/merck-index:316gjdpe]The Merck Index Online[/i][/url:316gjdpe]),
comprehensive encyclopedia of chemicals, drugs and physical substances (book or search), all necessary for chemistry and medicine.
offline version is not officially copied. The version may be somewhat old.
ACS Association Database: [url=http://pubs.acs.org/: 316gjdpe]ACS Publications Home Page[/i][/url:316gjdpe]
chemical safety technical specification query: [url=http://www.somsds.com/: 316gjdpe]MSDS query network, MSDS, chemical safety technical specification query, hazardous chemicals list [/i][/url:316gjdpe]
Chemical engine
[url=http://www.chemyq.com/xz.htm:316gjdpe] chemical dictionaries, chemical dictionaries, chemical properties query, physical nature query, chemical substance query, chemical MSDS, molecular weight, molecular formula, CAS, chemical product use, chemical preparation, chemical physicochemical properties, chemical safety, structural [/i][/url:316gjdpe]
[/i][/url:316gjdpe]
Chemical search engine: [url=http://www.chembing.com/: 316gjdpe]http://www.chembing.com/[/i][/url:316gjdpe]
[b] Electric: [/b]
IEEE database: [url=http://ieeexplore.ieee.org/Xplore/guesthome.jsp:316gjdpe]IEEE Xplore Digital Library[/i][/url: 316gjdpe]
electronic component data search
[url =http://www.alldatasheetcn.com/: 316gjdpe]ALLDATASHEETCN.COM[/i][/url:316gjdpe]
[i][b] (friends remind: this website is for reference only, the data is based on the official website!) [/b][/i]
[b] computer: [/b]
code:
[url=https://github.com/search:316gjdpe]Code Search. GitHub[/i][/url:316gjdpe]
[url=http://www.codase.com/: 316gjdpe]Codase Source Code Search : 316gjdpe]
[url=http://www.krugle.com/: 316gjdpe]Home krugle[/i][/url:316gjdpe]
[url=http://www.merobase.com/#main:316gjdpe]Merobase - Software Component Finder[/i][/url:316gjdpe]
Google Code: [url=https://code.google.com/: 316gjdpe] Rl=http://symbolhound.com/: 316gjdpe]SymbolHound: Search Better. Code Better.[/i][/url:316gjdpe]
search engine for special symbols, the gospel of the programmer, a sharp tool for problems such as Bash, regular, and so on!
[url=http://www.haskell.org/hoogle/: 316gjdpe]Hoogle[/i][/url:316gjdpe]
Hoogle, a special function search engine for Haskell, mother no longer have to worry about my Functional Programming
[url=http://rseek.org/: 316gjdpe]RSeek.org R-project Search Engine. .
[url=http://www.findjar.com/index.x:316gjdpe]findjar.com[/i][/url:316gjdpe]
JAR search engine is helpful for Java programming.
[url=http://research.microsoft.com/en-us/default.aspx:316gjdpe]Microsoft Research[/i][/url:316gjdpe] Microsoft internal search, many good things, often found the Google academic search for technical literature
SEO ranking knowledge search engine: [url=http:// www.skyh.cn/: 316gjdpe]seo optimization network - Enterprise Web search engine optimization ranking expert [/i][/url:316gjdpe], complete online learning formula structured SEO search algorithm
JustPing: [url=http://cloudmonitor.ca.com/zh_cn/ping.php:316gjdpe]CA APM Cloud Monitor website monitoring service [/i][/url:316gjdpe]
query the results of Ping from all parts of the world .
[b] import and export: [/b]
[url=http://igenzong.com/Land/CNTAO:316gjdpe]i tracking container tracking [/i][/url:316gjdpe] specially for cargo generation exporters to locate goods by non search tools.
[url=http://chs.so/: 316gjdpe] sea search network ---hs code query [/i][/url:316gjdpe], only to the tens of thousands of customs officers used in the small niche professional search engine.
[b] medicine: [/b]
[url=http://www.meddir.cn/: 316gjdpe] medical navigation (Meddir.cn) [/i][/url:316gjdpe]
rare disease: [url=https://www.rarediseases.org/rare-disease-information/rare-diseases:316gjdpe]Rare Disease Database[/i][/url:316gjdpe]
[b] Designer: [/b]
design resource navigation: Url=http://hao.uisdc.com/: 316gjdpe]SDC designer website navigation [/i][/url:316gjdpe]