The congruent theory is one of the core contents of number theory, containing a great deal of special thought, concept and method.
同余理论是初等数论的核心内容之一，蕴含着大量的数论所特有的思想、概念和方法。It was that primary education can happen on its own, or parts of it can happen on its own.
它告诉我们，初等教育可以通过自学完成，或者说，在一定程度上是这样的。Namely, to establish self-confidence or to develop excellent psychological quality are essential in the improvement of aural ability.
即建立自自信和培养良好的思想素质在听说升高等初等中等学校致关重要。Now in the early 70s, one of the great programs in India was to revitalize primary science in village schools.
就在这七十年代早期在乡镇学校里重振初等科学教育是当时印度的了不起的举措之一。Education shall be free, at least in te elementary and fundamental stages. Elementary education shall be compulsory.
至少在初等和基础阶段应免费，初等教育应强制。The educational assessment ability of primary school teachers is one of the basic qualities for the elementary educational normal students.
小学教师的教育评价能力，是初等教育师范生执教的基本素养之一。The level of daily expression is equivalent to the elementary level of HSK, one should be able to carry out simple business communication.
日常生活用语程度，相当于HSK初等水平，可进行简单的商务沟通。Education starts with preschool, followed by 6 years of primary education and up to 6 years of secondary education.
教育从幼儿园开始，接着是6年的初等教育和6年的中等教育。The actual stresses do not exhibit the discontinuity of slope at the centre indicated by the elementary theory .
实际应力在中心处存在初等理论所指出的斜率不连续性。