求翻译：准确称取茶叶磨碎试样3g，加450ml沸水，搅拌，再沸水浴中浸提45min，每隔10min摇瓶一次，过滤。洗涤残渣，滤液合并于500ml容量瓶中，加水定容至刻度，摇匀。是什么意思？

Weigh accurately take tea ground sample 3g, add 450ml boiling water, stirring, and then boiling water bath for extraction 45min, every 10min shaking the bottle once the filter. Washing the residue, the filtrate was combined in a 500ml volumetric flask, add water, set the volume to the mark, shake.

Accurately weigh the tea grinding samples 3G, plus 450 ml boiling water, stir, and then dip in boiling water bath 45 min mentioned, every 10 min, filter, a bottle. Shampoo residue from wastes, combined with 500 ml capacity in the bottle, the water will be let to the graduations and shake.

The accurate name takes the tea to grind test specimen 3g, adds the 450ml boiling water, the agitation, again boils in the water bath to soak raises 45min, each 10min rocker one time, filtration.The lavation residual, the filtrate merge in the 500ml measuring flask, the watering constant volume to t

Accurate preparation of ground sample of tea 3G, plus 450ml boiling water, stir, and then in boiling water bath soaking 45min, every 10min flask, filter. Detergent residue, merged with 500ml of landfill leachate in the volumetric flask, add water figuration capacity up to scale, shake.

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