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d67
reemoor
k418
sp500
48k
hxn5
maysu
l111
crh380a
9kg
b72
b72
b72
例句:
1
The
relic
protection
material
B72
was
developed
by
modifying
acrylic
resin
with
benzotriazole
UV
absorber
.
研制
了
苯
并三唑
类
紫外线
吸收
剂
改性
丙烯酸
树脂
文物
保护
材料
。
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H
root
baby
over
you
present