有效重度也叫浮重度。一般从地下水位以下取出的土其天然重度可作为饱和重度。当土处于地下水位以下时,则受到水的浮力作用,单位土体积中颗粒的有效重力,由单位土体积中土颗粒的重力扣除浮力后重度称为土的有效重度。
在离心铸球工艺中,可应用有效重度和等效压头原理计算转速和内浇口断面积。
It is suggested to apply the principle of effective gravity and equivalent pressure head to calculate the rotational speed and ingate area in the processing of grinding ball by centrifugal casting.
事实也的确如此,但是最有效的分配流量方式应该是向重度使用者收取更高的费用,可康卡斯特公司并没有选择这么做。
It was. But the most efficient way to allocate bandwidth among customers is to charge heavy users higher prices, which Comcast chose not to do.
一个国立精神卫生所基金会对439名重度抑郁的青少年临床试验发现药物治疗和心理疗法的结合是最有效的治疗选择。
An nimh-funded clinical trial of 439 teens with major depression found that a combination of medication and psychotherapy was the most effective treatment option.
应用推荐