国产网红无码精品视频,国产高清在线精品一区不卡,久久精品国产亚洲AV日韩,日本熟妇xxxx乱

怎樣去除學生校服定做上的鐵銹漬?衣服上沾了鐵漬后，可用2%的草酸溶液在50℃左右溫水中洗滌除去，然后用清水漂凈。用3~4粒維生素C藥片碾成粉末后，撒在浸濕的衣服污處，然后用水搓洗幾次，也可去除鐵銹漬。如是鐵銹陳漬，可用10%的草酸、檸檬酸加水混合液將沾銹處浸濕，然后浸于濃鹽水中，1天后洗凈即可。
How to remove the rust stains on students' school uniforms? After the clothes are stained with iron stains, you can use 2% oxalic acid solution to wash them in warm water at about 50 ℃, and then rinse them with clean water. Grind 3-4 vitamin C tablets into powder, sprinkle them on the wet clothes, and then rub them with water for several times to remove rust stains. In case of rust aging, use 10% oxalic acid, citric acid and water mixture to soak the rust stained place, then soak it in concentrated salt water, and wash it after 1 day.
怎樣去除蟹黃、軟糖、雪糕冰淇淋漬?/br蟹黃漬：可用煮熟的蟹上的白腮搓拭，然后在冷水中用肥皂清洗即除。軟糖漬：可先用小刀將泡泡糖刮去，然后取雞蛋清抹在遺跡上使其松散，再逐一擦凈，后在肥皂水中清洗，用清水漂凈。
How to remove crab roe, fudge and ice cream stains? / BR crab roe stains: rub the white gills of cooked crab and then wash them with soap in cold water. Soft candy stains: you can scrape the bubble gum with a knife first, then take the egg white and wipe it loose on the ruins, then wipe it one by one, then wash it in soapy water and rinse it with clean water.

雪糕冰淇淋漬：新漬可用加洗衣粉溫水溶液洗滌，30分鐘后用清水漂凈。陳漬可先用汽油涂于污處，擦去油脂，再用1：5的氨水和水溶液搓洗，待污漬去除，再用肥皂或洗滌劑洗一遍，用清水漂凈即可。
Ice cream stains: new stains can be washed with washing powder and warm water solution, and rinsed with clean water after 30 minutes. After the stain is removed, wash it with soap or detergent and rinse it with clean water.
山東園服定做
Shandong garden clothing customization
為了減少學生交通事故的發生，學生校服定做的可以加入3M反光條：反光材料之所以能夠反光，主要在于反光材料中都含有一種高折射率玻璃珠或者微晶格結構，每平方厘米的面積內排列著上千個微小單元。
In order to reduce the occurrence of students' traffic accidents, 3M reflective strips can be added to students' school uniforms: the reason why reflective materials can reflect light is that reflective materials contain a high refractive index glass bead or microcrystalline lattice structure, with thousands of micro units arranged in each square centimeter.
正是因為它們的存在，可將光線按原路反射回光源處，從而讓光源附近的觀察者可以清晰地看到目標。如果你有其他問題后者疑問可以來電咨詢我們公司。
Because of their existence, the light can be reflected back to the light source according to the original way, so that the observer near the light source can clearly see the target. If you have other questions, you can call our company.