The gas nitriding technology of H13 steel was studied by an orthogonal test.
运用正交试验法，研究H13钢气体渗氮工艺。
A kind of mid temperature phosphating solution with high corrosion resistance was prepared by an orthogonal test.
得到一种高效、高耐蚀性、稳定、实用、无污染、低成本的中温磷化液。
Methods With the lead-removing rate as an index, the ratio of mungbean powder, Lycium chinensis Mill powder, jujube powder and licorice powder was optimized by an orthogonal test.
方法采用正交试验，以排铅率为指标，优选绿豆粉、枸杞粉、大枣粉、甘草粉的用量。
In order to find the best conditions of enzymatic hydrolysis, an orthogonal test was adopted to investigate enzyme species, substrate concentration, enzyme concentration and hydrolysis time.
为了研究猪血红蛋白的最佳酶解条件，采用正交试验法研究了酶的种类、底物浓度、酶浓度和水解时间四个因素。
The experiment used corn as major material, applied an orthogonal test to find parameters and the proper technology of making the pancake of corn tiny powder, and optimized the formula.
以玉米为原料，通过正交试验探讨了制作玉米微粉煎饼的工艺和参数。并确定了配方。
The experiment used corn as major material, applied an orthogonal test to find parameters and the proper technology of making the pancake of corn tiny powder, and optimized the formula.
以玉米为原料，通过正交试验探讨了制作玉米微粉煎饼的工艺和参数。并确定了配方。
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