a.) A bimetallic strip is made of two metals that have different coefficients of _______ _______ .
b.) In a blank CD-RW, the compound in the recording layer is in a ____________ state. If the laser heats it and then cooled quickly, the compound changes its phase to ______________ which has __________ reflectivity.
c.) At 100 Kelvin, water is in the phase of __________. ( Hints: solid, liquid or gas )
fill in some words ( about science )
2007-10-03 5:37 am
回答 (2)
2007-10-12 7:12 am
✔ 最佳答案
A. linear expansivityB. amorphous, crystalline, different
C. solid
A. A bimetallic strip is made of two metals that have different coefficients of __linear__ __expansivity__ .
B. In a blank CD-RW, the compound in the recording layer is in a __amorphous__ state. If the laser heats it and then cooled quickly, the compound changes its phase to __crystalline__ which has __different__ reflectivity.
C. At 100 Kelvin, water is in the phase of __solid__. ( Hints: solid, liquid or gas )
參考: me ^^
2007-10-03 6:02 am
A: physical properties
C: solid
C: solid
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