单词	礎之角石
释义	同Head-stone
随便看	closed end pipe pile closed-end question closed-end spanner closed-end spark plug closed-end trust closed-end tube closed end wrench closed-end wrench closed entry closed environmental control system closed equations closed escort closed exhaust closed exhaust valve closed extension in group closed eyes foot balance closed failure closed fair leader closed fair-leader closed fairleader closed fair leader-- close fair leader--canal fair leader closed fault closed feed system closed feed system boiler closed feed water heater