Leonard: Oh, I’ve got it. How about if we replace panels A, B and F and crossbar H with aircraft grade aluminium.

Sheldon: Right, then the entire thing’s one big heat sink.

Howard: Perfect, Leonard, why don’t you and Sheldon go down to the junk yard and pick up about six square metres of scrap aluminium, Raj and I will run down to my lab and get the oxy-acetaline torch.

Leonard: Meet back here in an hour?

Howard: Done.

Leonard: Got it. (They all leave).

Penny: Okay, this place does look pretty good.

Aircraft-grade
【釋】aircraft 航空；grade級別。航空級別的(必應，下同)
【例】aircraft-grade aluminum
航空級別的鋁

Heat sink
【釋】吸熱設(shè)備,冷源;散熱片(必應，下同)

scrap
【釋】廢料(必應，下同)
【例】Thieves had noticed how much Chinese steel demand had bid up the price of scrap metal.
盜賊們注意到,中國的鋼鐵需求極大地推高了廢金屬價格。

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