英汉词典 专业、权威的英语单词查询平台

focus focus (of an earthquake) focus (pl. foci) focus and zoom motor focus area focus attention focus attention on focus attention on objectives focus calibration tape focus center focus circuit focus coil focus coil assembly focus coil axis focus coil housing focus coilaxis focus control focus correction focus crank focus current focus current correction focus current REG focus current regulator focus difference focus drum focus electrode potential focus extension focus fiber optics focus film distance focus for infinity FOCUS Fusion focus gambling focus glass focus grill focus group focus group discussion focus group interview focus group study focus groups focus handle focus hypothesis focus in focus in image space focus in object space focus interview focus knob focus lamp focus lens focus lens region focus level focus list focus magent focus magnet focus mask focus mask type colour tube focus modulation focus of focus of attention focus of convenience focus of earthquake focus of ellipse focus of excitation focus of expansion (foe) focus of follow-up focus of infarct focus of infection focus of lens focus of natural infection focus on Focus on economic construction focus on the focus on the essential focus out focus pack focus perspective focus plate focus point focus prediction focus projection and scanning focus pull focus puller focus range focus rectangle focus rectifier focus regulator focus report focus ring focus serve focus servo focus set focus shift focus size focus solar collector focus space focus strategy focus target focus tracking focus transformator focus transition focus upon focus variable rheostat focus VR focus window focus's focus(on) focus-coil assembly focus-coil axis focus-compensating pentode focus-film distance focus-grid focus-group focus-grouped focus-grouping focus-groups focus-image distance focus-in focus-mask focus-object distance focus-out focus-puller focus-pullers focus-skin distance focus-to-film distance focus-to-film distance (ffd) focus-to-skin distance (fsd) focusability focusable Focusan focused focused attention focused beam focused collision focused condition focused conditions focused device focused differentiation focused dynode system focused factory Focused Fund focused Gaussian laser beam focused grid focused image hologram focused interview focused ion beam focused ion beam implantation focused ion beam microanalyzer focused ion beam technology focused ion-beam etching focused jet focused jet amplifier focused line of business focused log focused logging focused microresistivity focused monocjromatic x-ray beam focused on focused overload focused reflector focused spot diameter focused strategy focused synthetic array focused therapy focused transducer focused-attention stage focused-current log focused-image focusedimage focuser focusers focuses focuses on focuses upon focushautdistanz focusing focusing accuracy focusing adaptor focusing adjustment focusing aid focusing alignment focusing anode focusing antenna focusing apparatus focusing area focusing attachment focusing barrel focusing block focusing board focusing camera focusing camera mirror focusing chromatography focusing circle focusing cloth focusing coefficient of sonde focusing coil focusing collector focusing condition focusing conditions focusing cone focusing control focusing criterion focusing cup focusing current focusing curve focusing cylinder focusing defect focusing device focusing diffractometer focusing diffratometer focusing distance focusing drive knob focusing effect focusing electric field focusing electrode focusing electrode type photomultiplier focusing electrophoresis focusing error focusing external focusing eyeglass focusing factor focusing field focusing field strength focusing filament focusing foil focusing force focusing geometry focusing glass focusing grid focusing hood focusing instrument focusing internal focusing jet focusing knob focusing lamp focusing laser Doppler velocimeter focusing lens focusing magnet focusing magnetic field focusing magnifier focusing mark focusing mechanism focusing microscope focusing mirror focusing monochromator focusing mount focusing of headlamps focusing on focusing optical fiber focusing optics focusing performance focusing point focusing point radiometer camera focusing potentiometer focusing power supply focusing probe focusing quadrupole magnet focusing range focusing reflector focusing regulation focusing regulator focusing ring focusing rod focusing scale focusing screen focusing screens focusing screw focusing slide focusing Soller-slit system focusing spectrometer focusing study focusing surface focusing system focusing telescope focusing travel focusing tube focusing tube of camera focusing type filament focusing type probe focusing unit focusing voltage focusing x-ray tube focusing-point focusings focusless focuson focusout focusRect focuss focussable focussed focussed spot diameter focusser focusses focussing focussing distance focussing electrode focussing field focussing glass focussing lens focussing mechanism focussing ring focussing screw focussings focusview focusviews