管用和

产品分为防腐管用和防腐保温用两大类。

The products are divided into two major categories of anticorrosion pipe and anticorrosion & insulation .

并在发明其与消费者心智沟通的广告运动中，累积、证验了道禾独有的管用资源和工具整体体系。

And within the creation of its advertising campaign to speak the mind of customers , the buildup of unique Wo Road proved an efficient system of resources and gears .

方法甲乙两组分别对14个离体牙细小根管用17%EDTA和50%枸橼酸处理3天。

Methods 17 % EDTA and 50 % citric acid are applied to Group A and Group B respectively for three days , each group having 14 extracted teeth with small root canals .

这个办法真的很管用，但和其他很多事一样，也需要练习和自律才能日臻完美。

The technique really works , but like many things , it takes practice and discipline to hone and perfect it .

治疗链很管用，环和野性生长也用的很多，几乎是让其他治疗法术毫无用武之地。

Chain Heal does very good in those encounters , as you 'd expect , but Circle of Healing and Wild Growth are also used a lot in those situations , almost to the exclusion of other heals .

本文报告了我们用阶跃恢复法测定砷化镓两极管载流子寿命的初步结果。首先，对硅阶跃两极管用反向恢复法和阶跃恢复法两种方法测寿命，经比较结果，数据相当符合。

This paper presents some preliminary results on the measurement of carrier lifetime of GaAs diodes by the step recovery method .