他研究了摆线 、 圆外旋轮线和四点圆的旋轮线的几何性质.He investigates geometrical properties of cycloids , epicycloids, and hypocycloids.由于这个缘故,摆线又叫做等时曲线.For this reason the cycloid is called the tautochrone.分析摆线钢球行星传动减速器的振动特性.The vibration perfo...
Police, weary and increasingly sour in mood, wonder aloud why the situation has been allowed to deteriorate.警察们疲惫不堪，心情也越来越糟糕，他们不禁满腹狐疑地问：为什么听凭情况不断地恶化下去？There are fears that the situation might deteriorate into full-scale ...
...five years of economic purgatory.5年的经济困难Prayers were said for souls in Purgatory.祷告词是为炼狱中的灵魂念的。a purgatory of drug abuse.滥用毒品而引起的痛苦Getting up at four o'clock every morning is sheer purgatory.每天早上四点起床简直是活受罪。Every ...
Lava Spawns now require 15 attacks to replicate, up from 14.火人现在需要攻击15下才会分裂, 而不是14下.Idleness spawns discontent, whereas overwork leads to mental and physical exhaustion.懒惰滋生不满, 而过度工作导致精神和身体的疲劳.Idleness spawns discontent,...