不是存在

• As a whole always before his eyes . the object most prominent to his mind in the estate was not the azote nor the oxygen in the soil or the atmosphere , not a particular plough nor manure , but the principal agent by means of which the azote and the oxygen and the plough and the manure were all made effectualthat is , the labourer , the peasant
  他的目光总是盯着整个庄园，而不是庄园的某一部门，在庄园里，主要的东西不是存在于土壤和空气中的氮和氧，不是特别的犁和粪肥，而是使氮氧粪肥和犁发生作用的主要手段，也就是农业劳动者。