量子化学

A satisfactory result was obtained,the correlation coefficient of the built model based on Leave-one-out Cross-validation were 0.990 0 and 0.986 7,respectively.This model is tested by 13C NMR chemical shift of three terpenoid compounds and the excellent result with correlation coefficients R =0.977 7 was obtained.

而C原子是组成有机化合物分子骨架的重要元素，其NMR谱包含了与该分子量子化学性质直接相关的信息[2]，因此，NMR谱被广泛应用于对有机化合物结构的鉴定[3-4]、动态过程和平衡及水溶液中蛋白质三维结构的研究(见2002年诺贝尔化学奖得主维特里希的成果)。

The most common manipulation technique is the lateral manipulation method that utilizes a tunable chemical bond interaction between the probe tip and adatom to "slide" the adatom to different lattice sites on the surface.3,4 This method has been successfully used to create numerous quantum confined nanostructures.5-7 In adatomsubstrate systems where lateral manipulation does not work well, vertical manipulation techniques have been developed.

最常用的手段横向操纵技术方法，采用了可调式化学键探针针尖和互动 adatom&滑&adatom网站在不同网格 4这方法surface.3已成功地用于创建在adatomsubstrate nanostructures.5-7众多量子局限横向操纵系统不能正常工作了哦，垂直操作技术。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。