1·Nanometer measurement technology is one of the preconditions to solve many current and future problems of high accuracy and resolution.
纳米级计量技术是解决目前和未来许多高精度、高分辨力问题的先决条件之一。
2·A number of human resources are the social production of the necessary preconditions .
一定数量的人力资源是社会生产的必要的先决条件。
3·Studying of words is the most fundamental means for language learning and also the preconditions of language application.
词汇的学习是语言学习最基本的方法，同时也是语言应用的先决条件。
4·The preconditions, additional conditions and reflection laws of variational principle are the complete elementary equations in elasticity.
弹性力学变分原理的先决条件、补充条件和反映的规律一起正是弹性力学全部基本方程。
5·The key point is that a derived class can't just add preconditions.
关键的一点是派生的类不能只是添加的先决条件。