您要查找的是不是：
- (1) a number of supernovae and one nova in extragalactic systems. (1) 河外星系中发现了一批超新星和一个新星；
- The two systems of government are polar opposites. 这两种政体正好相反。
- The two systems are, in effect, identical. 这两种制度实际上一模一样。
- extragalactic systems 外银河系
- extragalactic system 河外星系
- Extragalactic nebula is invisible to the naked eye. 我们用肉眼是看不到河外星系的。
- Interaction between systems or between properties of a system. 系统间或一个系统的各种特性之间的相互作用。
- Old systems still subsist in the country. 国内仍存在着古老的习俗。
- She had swung round the circle of theories and systems without finding relief. 她对各种不同理论和体系都曾经接受过，但均未能从中找到慰藉。
- What we eat is assimilated into our systems. 人们吃的东西被吸收到身体里去。
- "Extragalactic nebula" is a former name for "galaxy". “外星云”是“星系”的曾用名。
- What are the difference between the American and British systems of government? 英美两国的政府体制有什么不同？
- Drip or ooze systems are common for pot watering. 滴灌和渗灌系统一般也用于盆栽灌水。
- A condensation to quinoid systems occurs. 发生了醌型体系的缩合反应。
- Our city water systems pump water into high tanks. 我市各供水系统都把水打送到高位罐中去。
- The analysis and deciphering of cryptographic writings or systems. 密码分析对密码书写或密码系统的分析和译解
- Knowledge of office procedures and systems. 了解办公室工作程序及系统。
- Auditory Trainers or Wireless FM Hearing Systems? 语训器,还是无线调频辅听系统?
- Official pricing systems usually respond slowly. 官方价格体系通常对此反应迟钝。
- Some organic systems involve more complex fixation. 一些有机体系还牵涉到比较复杂的凝固。
