Plain, solid white/gray or solid dark backgrounds are common
背景色调通常采用简单的纯白色/灰色或纯黑色
All matter, whether it be gas, liquid or solid, is made up of atoms.
所有物质，不论是气体，液体，或固体，都是由原子构成。
They can be large or small, hollow or solid, clear or discolored.
它们或大或小，或空心或实心，或透明或变色。
Device used to crush or pulverise plastic or solid coating to powder form.
压碎、研磨塑料或固体涂料成粉末形式的设备。
Will some poison gas, waste water or solid waste be released from your project?
您的项目向外界排放废气、废水或者废渣吗？
Will some poison gas, waste water or solid waste be released from your project?
您的项目向外界排放废气、废水或者废渣吗？
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