这些矿物质形成了菌斑的结晶变硬的结构.These minerals form crystals and harden the plaque structure.变硬的熔岩块象雨点般降落在山下村庄.Boulders of hardening lava can rain down on villages.同样不幸的是, 挖出变硬的盐是唯一的解决方法.Unfortunately again, digging the hard salt out...
某些脉冲星发送脉冲比地球上最精确的时钟都准时。Some pulsars keep time better than the earth's most accurate clocks.他们发现了以往想象不到的新客体 —— 脉冲星 、 类星体和黑洞.They have discovered now , previou sly unimagined objects - pulsars, quasars, and black hole...
Other unpleasant changes may include odor production or alternations in tactile characteristics.另外还有使人感到不愉快的其它现象,诸如产生气味或是手感起变化等情况.I thought perhaps the alternations had disturbed some old associations he valued.我想,也许这改变打...