Some pulsars keep time better than the earth's most accurate clocks.某些脉冲星发送脉冲比地球上最精确的时钟都准时。They have discovered now , previou sly unimagined objects - pulsars, quasars, and black holes.他们发现了以往想象不到的新客体 —— 脉冲星 、 类星体和黑...
只做输送氧的血蛋白的检查是不够的.It is not sufficient only to check levels of blood protein that transports oxygen.研究了用蛋白酶水解鸡血蛋白制备肉味香精的工艺.Chicken haematoglobin was hydrolyzed by acid proteinase and the hydrolysate was supplemented with ...
导游简要地介绍了那个遗址的历史。A guide gives a brief talk on the history of the site.问题是要保护遗址免受房地产开发商的侵占。The problem was to safeguard sites from encroachment by property development.虽经长期寻找，但该遗址直到最近才被发现。This site remained undiscovered, ...
其中两人下车鼓捣引擎。Two of them got out to fiddle around with the engine.治安人员硬把那些人拉下车。The vigilantes dragged the men out of the vehicles.他想让车上的乘客下车。He wanted the occupants of the vehicle to get out....