英译中(Translate):passive absorption()
消声sound attenuation;moise reduction sound deadening
吸声材料分为()吸声材料和()吸声材料,其中()是最重要、用量最大的吸声材料。
吸声量不仅与吸声材料的吸声系数有关,而且与材料的总面积有关。()
房间吸声量room absorption
吸收(absorption/uptake)的含义
吸声降噪两随离声源的距离而变化,靠近声源的吸声降噪量小,远离声源的吸声降噪量()
奢侈吸收 luxury absorption
多孔吸声材料的吸声频带为(),穿孔板吸声构造的吸声频带为()。
吸声系数sound absorption coefficient
选择吸收 selective absorption
对某厂房采取吸声处理的方法降噪,在吸声处理前,机房内平均吸声系数为0.05,厂房采取吸声措施后,机房内的平均吸声系数提高到0.22,此时取得的降噪量为()。
阴离子吸收学说 theory anion absorption
交换吸收 exchange absorption
after digestion and absorption of food fats, the resembled lipids in intestinal mucosal cells need ( ) to transport to blood, then to liver.
e. Vitamin C supplements may be combined with iron supplements to increase iron absorption.
英译汉:“shrinkage;water absorption;moisture regain”,正确的翻译为()。
The purpose of the ashing step in graphite-furnace atomic-absorption spectroscopy is to() A.vapor
Of all the extingushing agents listed below, which one has the greatest capacity for heat absorption?______.
Please read the information above and calculate the net operating income under absorption costing for the month of June
What is the effect of vitamin D on phosphorus absorption?
absorption 名词解释
根据以下内容选择相应的术语或词汇填入 1. a mental disorder characterized by impaired communication, extreme self-absorption: ____ ()
1、所有的建筑材料都有一定的吸声特性,工程上把吸声系数大于()的材料和结构称为吸声材料或吸声结构。