试验采用直投式菌粉快速发酵甜葫芦泡菜，通过单因素试验和正交试验确定最佳发酵条件。
Sweet calabash pickle was fermented by using Direct Vat Set starter. The optimal fermentation conditions were obtained through single factors and orthogonal experiments.
王中德(1989)推广了矩阵直积，给出了矩阵第二类直积和第三类直积运算，并将此运算应用于正交变换的构造。
The matrix direct product is generalized and two kinds of direct products are given by Wang Zhongde (1989). These two kinds of direct products are applied to the construction of orthogonal transforms.
推导出了正交的两组准直微透镜阵列的面形公式；计算了准直光束的准直精度和聚焦光学系统参数。
The orthogonal surface equation of the collimating micro-lenses array is derived, the divergence angles after collimating and the parameters of the focused lens are calculated.
应用推荐