方法采用正交设计法，以所制乳剂离心分层油层的高度为考察指标，对影响乳剂稳定的主要因素进行优选。

Method Using the height of oil layer in the centrifuged emulsion as evaluating criterion, the main factors that affect the stability of emulsion were selected by orthogonal design method.

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然后利用正交法优选配方，制得耐水性良好、附着力强的水玻璃复合涂料。

Then the prescription is optimized by orthogonal method. Thus a sodium silicate composite coating with good water tolerance and strong adhesion is prepared.

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结论：用正交试验法优选失笑滴丸的滴制工艺是可行的。

CONCLUSION: It's feasible to seek the optimum techniques making Shixiao pill by orthogonal test.

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