炎炎夏日,踢完一场球赛,每个队员都已经是汗如雨下。如果这个时候,能得到大材的阴凉,那一定是件美事。不过,你知道吗,我们之所以能在大树下享受阴凉,是因为大树也在出汗降温呢!每时每刻都在出汗我们都知道,人体要保持相对稳定的温度。一旦温度上升,大脑就会发出赶紧出汗的指令。这时,所有汗腺就开始工作,汗水就从毛子L里冒了出来。大树们出汗,通常是从叶片的气孔里冒出来的。不过,大树们出汗可不是为了降低体温,而是为了运输养料。 Summer, kick a game, every player is already sweating. If at this time, get a cool shade, it must be a good thing. But you know, the reason why we can enjoy the shade under the big tree is because the big trees are also sweating and cooling! Sweating all the time We all know that the human body needs to maintain a relatively stable temperature. As soon as the temperature rises, the brain sends out a quick hurry instruction. At this moment, all sweat glands begin to work, sweat comes out from Mao L. The trees sweat, usually from the stomata of the leaves. However, the trees sweat not to reduce body temperature, but to transport nutrients.