The effects of weathering can be simulated in the laboratory.在实验室里可以模拟各种天气产生的影响.This suggests that the optimum for biological weathering would be in a hot, moist climate.这表明生物风化最适宜的条件是湿热气候。The movement of water is also a...
Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation.在表示“连加”的式子中,几乎一成不变地使用省略号来代替更为流行的“∑”符号.Defines arcs and ellipses and identifies the classes needed to draw them.定义弧形和椭圆并确定绘制...
他停下来，饶有兴趣地看着孩子如此投入。He stopped and watched with amusement to see the child so absorbed.消防车正要停下来，警报器发出刺耳的声音。The fire engines were just pulling up, sirens blaring.他在街灯下停下来，看着对面的咖啡馆。He paused under a streetlamp and looked ac...
It's the chamois'leaping powers, more than its fleetness of foot, that was astounding.是小羚羊的跳跃能力, 而不是它的奔跑速度使人吃惊.How does the fleetness increase a leucocyte?如何快速增加白细胞?Wolf preys on various animals, securing some ...