“floor collar”的概念、定义、翻译、参考文献-科学参考

单词	floor collar
释义	floor collar [`flȯr ´käl·ǝr] ^ENGINEERING A relatively narrow upright structural part fitted around the periphery of a hole where a pipe passes through to prevent drainage water from entering the hole.
随便看	horizontal-position welding horizontal pressure force horizontal projection horizontal range horizontal resolution horizontal retort horizontal retort process horizontal retrace horizontal return tubular boiler horizontal-ring drilling horizontal-rolled-position welding horizontal scanning horizontal scanning frequency horizontal screen horizontal separation horizontal separator horizontal silo horizontal sweep horizontal sweep transformer horizontal synchronizing pulse horizontal system horizontal transmission horizontal-tube evaporator horizontal vee horizontal vibrating needle

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