n.
an implement used in the practice of a vocation
the means whereby some act is accomplished
"science has given us new tools to fight disease"
同义词：instrument
a person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone else
同义词：creaturepuppet
obscene terms for penis
同义词：cockprickdickshaftpeckerpeterputz
Tools for microRNA genomics
miRBase: tools for microRNA genomics.
Improved tools for biological sequence comparison
Improved tools for biological sequence comparison.
Switch box for power tools with safety systems
Compilers: principles, techniques, and tools
Compilers: Principles, Techniques, and Tools (2nd Edition)
Pearson WR, Lipman DJ. Improved tools for biological sequence comparison. Proc Natl Acad Sci USA 85: 2444-2448
The Ribosomal Database Project: improved alignments and new tools for rRNA analysis.
The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools.
