Throngh the chemical analysis for the substrate and field demonstrated trial show that, using the cob and stalk to cultivate the edible mushroom is desirable in theoretically and technically.
2
建立了玉米茎秆的力学模型，利用力学理论和方法，给出了玉米茎秆临界力的具体表达式。
A dynamic model for maize stem is established, a formula about critical force of maize stem is extracted by using dynamic theory and method.
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