Glass and metal cleaners that include hydrofluoric acid, nitrilotriacetate and phosporic acid could cause burns or irritation if staff do not use a protective barrier.

如果工作人员不做防护，包含氢氟酸、磷酸、氨三乙酸的玻璃和金属清洁剂会灼伤或刺激到皮肤。

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The hitch of the canned-motor pump for delivering hydrofluoric acid was analyzed. The corresponding transformation was conducted in order to guarantee the pump running long period.

分析了输送氢氟酸的液下屏蔽泵产生故障的原因，进行了相应的改造，保证了屏蔽泵的长周期稳定运行。

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The silica xerogels were synthesized by ambient pressure drying method with hydrofluoric acid (HF) as catalyzer. The influence of catalyzer and drying method on the xerogels were analyzed.

以氢氟酸(HF)为催化剂，采用常压干燥法制备了二氧化硅干凝胶，分析了催化剂和干燥条件对干凝胶的影响。

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HF And let's take an example, HF, hydrofluoric acid, all right?

这里有个例子，氢氟酸，对吧？

麻省理工公开课 - 固态化学导论课程节选

The oxide (which comes from an ore called coltan) is converted to a fluoride using hydrofluoric acid, and the fluoride is then reduced with liquid sodium.

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