cycles

• He began to get the knack of cycling one-handed, and increased his speed .
  他熟练地单手扶把骑着车，加快了速度。
• By this means it was possible to recapitulate the life cycle of a carrot plant .
  这个方法能重演胡罗卜的生活史。
• Both the united states and canada are affected by the same climatic cycles .
  美国和加拿大均受到同一大气环流的影响。
• It always is an inseparable part of the research and development cycle .
  它总是研究和开发周期中的一个不可缺少的部分。
• It is a routine matter to write down an explicit expression for this cycle sum .
  写出这个循环和的显式是件轻而易举的事。
• Isolable carbocyclic compounds contain seven or fewer carbons in the cycle .
  可分离的碳环化合物环内含七个或七个以下的碳。
• "kilo" means 1, 000; therefore 760 kilocycles means 760, 000 cycles .
  “Kilo”指的是1，000，因而，760千周就是760，000周。
• He counted his cadence of cycling against the sweep second hand on his watch .
  他按照手表秒针跳动的节奏，计算着蹬车的频率。