Regulation of self- thinning is that relationship between DBH and average density of population accords with negative power function.
樟子松种群自疏规律为：平均胸径与密度的关系符合负幂函数模型。
The mainly behavioral ways of nurses control their negative emotion are "talking", "leave adjustment", "self-regulation", "to avoid", and "dilute the impact by the use of time".
护士控制负性情绪的行为方式主要有倾诉、休假调适、自我调节、逃避以及利用时间冲淡影响。
On the cultural level, the cloning of human beings for reproductive natural alternatives and the negative, breaking the biological evolution of self-regulation, with the typical anti-natural nature.
就文化层面而言，克隆人是对自然生殖的替代和否定，打破了生物演进的自律性，带有典型的反自然性质。
Electrical life: 50000primary Characteristic: it is stepless speed regulation of cross current switch, which have self-lock and positive and negative device.
电器寿命：50000主要特征：交流无级调速开关，具自锁和正反装置。
Electrical life: 50000primary Characteristic: it is stepless speed regulation of cross current switch, which have self-lock and positive and negative device.
电器寿命：50000主要特征：交流无级调速开关，具自锁和正反装置。
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