The tools were solid metal and very heavy.
那些工具是实心的金属，所以很重。
A DOOR. It is thick and solid metal and strong.
一扇门。这是一扇厚重、结实、坚固的金属大门。
The present paper discusses the rate-controlling of the gas-solid metal reaction.
本文讨论气体—金属固体间多相反应的速度控制环节。
Solid metal to metal drive linkage device.
坚固的金属对金属驱动联动器。
Solid metal to metal drive linkage device.
坚固的金属对金属驱动联动器。
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