处理过的

They used strings previously treated with powdered glass.

他们使用了事前用玻璃粉末处理过。

Now they wear rubber fingers treated with lactic acid.

现在他们带上了用乳酸处理过橡皮指套。

Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid solid solvent method,with pretreated bentonite as support.

以无水三氯铝为料,并以处理过膨润土为载体,采用液固溶法制备固体酸催。