Test tube holder

A test tube holder can be made from wood or metal. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube holder can be used to hold a test tube while it is being heated. Moreover, when heating the tube with liquid or solid contained inside, the tube holder ought to tightly hold a test tube in order for the tube to be safely held while heating.

单词	Test tube holder
释义	Test tube holder 英语百科 Test tube holder A test tube holder can be made from wood or metal. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube holder can be used to hold a test tube while it is being heated. Moreover, when heating the tube with liquid or solid contained inside, the tube holder ought to tightly hold a test tube in order for the tube to be safely held while heating.
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