systems tracts

• 体系域

systems tracts的用法和样例：

例句

1. Therefore, hydrocarbon source rocks formed in the early highstand system tract have the best hydrocarbon potential.
   因此早期高位体系域中的烃源岩有较好的生烃潜力。
2. Better reservoirs are developed in Lowstand systems tracts while better source beds and cap rocks are developed in Transgressive and Highstand systems tracts.
   低位体系域发育分选良好的储层，而水进体系域和高位体系域沉积则往往是良好的生油层和盖层。