化学实验室里，除了有些实验要用到镊子外，还有些操作如打开试剂瓶的内盖，也要用到镊子，而化学药品一般都有较强的腐蚀性，镊子常受到腐蚀而损坏，为此，我们在学生实验中使用了自制的镊子。制作方法很简单，用钳子将8号铁丝截取长50cm左右的一小段，然后弯铸成如附图形状。 In chemical laboratories, in addition to the use of tweezers in some experiments, some operations such as opening the inner lid of reagent bottles and tweezers are also used. Chemicals are generally corrosive, and tweezers are often damaged by corrosion. For this reason, we used homemade dumplings in student experiments. The production method is very simple, and the 8th iron wire is cut with tweezers to a length of about 50cm, and then bent into shapes as shown in the drawings.