This method was adaptable to complex HEN, and could guarantee a more controllable HEN for production.
该法适用于大型复杂换热网络，满足生产控制要求，并能保证整个换热网络具有较高的可控性。
A new process of such kind similar to superplastic deformation was proposed and hen put into production of heavy-wall stainless steel elbow successfully.
提出了一种近似超塑变形的扩径推弯成型方法，并成功地用于厚壁不锈钢弯头的生产。
Objective: to observe the inhibitory effect of anti-streptococcus mutants Hen egg yolk (IgY) on production of acid by streptococcus mutants.
目的：观察不同糖源对变形链球菌(变链)生长产酸的影响。
Objective: to observe the inhibitory effect of anti-streptococcus mutants Hen egg yolk (IgY) on production of acid by streptococcus mutants.
目的探讨不同龋敏感者变异链球菌临床分离株的生物膜形成和产酸能力。
Objective: to observe the inhibitory effect of anti-streptococcus mutants Hen egg yolk (IgY) on production of acid by streptococcus mutants.
目的探讨不同龋敏感者变异链球菌临床分离株的生物膜形成和产酸能力。
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