简述高压无气喷涂。
参考答案:
靠高压泵压送涂料,获得高压的涂料,从喷嘴中喷出,遇空气后体积骤然膨胀而分散雾化,高速附着在被涂物上的一种涂装方法。
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As a considerate teacher, he or she must be good at ______ the students’ mind , seeking for the best way to help them with their problems.
A.reading
B.seeing
C.watching
D.realising
因为0.6=0.60,所以它们计数单位也相同.______.(判断对错)