活: live钩: hook活钩扳手: adjustable hook a er; adjustable hook spanner活钩链段: lengthening piece系缆活钩: slip-hook for connecting rope活根草: liferoot活根: live root活狗胜过死狮: a living dog is better than a dead lion活隔渣板: removable dam活箍: slip-on coupling活格元: voigt element活棺材: a living tomb活格模型: voigt model