植物的肺就是其叶片上微细的气孔。A plant's lungs are the microscopic pores in its leaves.在干旱的条件下, 叶子的膨压减少而气孔关闭.Under conditions of water stress, leaf turgor decreases and stomata close.他使橡胶塞牢固地塞进盖上的排气孔.He presses the rubber stopper ...
Drag onto the page to add a bollard for blocking vehicle access.拖到绘图页后,可以添加阻止机动车通行的安全岛护柱.It'starves tumors by blocking blood flow to the growths.它阻断血液循环,使肿瘤失去食物来源从而阻止其生长.The blocking effect of caprolactam to - NCO i...
What does the theory of plate tectonics maintain?这板块构造学说的理论讲些什么?The idea of sea - floor spreading actually preceded the theory of plate tectonics.海床扩展说实际上早于板块结构理论.The platform deposits and rocks footwall are affected by ...