ppm是英文part per million的缩写,表示百万分之几,在不同的场合与某些物理量组合,常用于表示器件某个直流参数的精度. 结果一 题目 "Parts Per Million"(PPM)是指的什么? 答案 ppm是英文part per million的缩写,表示百万分之几,在不同的场合与某些物理量组合,常用于表示器件某个直流参数的精度. 结果二 题目 "...
2、一。ppm part per million 百万分之ppb part per billion 10 亿分之ppt part per trillion 万亿分之part per thousand 千分之PPmPPbPPt单独拿出来,不能说是单位,就象一样,不是单位。使用的时候可以,可以定义为v/vn/nm/mg/lg/m3等等。PPm是10的一6次方PPb是10的一9次方PPt是10的一12次方ppmpart per ...
parts n.【part的复数形式】 1.片段,部分,一点 2.部件,零件 3.器官;部位;组成部分 4.(世界、国家或城镇等的)区域,地区 5.(书、电视系列片等的,尤指单独发行或播出的)部,集, per prep. 1.〈拉〉(表示关涉)通过,由 2.(表示根据)依照,根据 3.(表示比率)(尤指数量,价格,时间)每 4.每,每一 ad...
aDutch and proud of it. Also a very decent football player. I just want to have a nice chat! 荷兰语和骄傲为它。 并且一位非常正派足球运动员。 我想要有好的闲谈![translate] aS$ Fixed Deposit Account (FD) and S$定期存款帐户 (FD) 和[translate] ...
ppm:全称为"parts per million",中文指百万分之一。表示在总量为一百万份的混合物中,有多少份是我们需要关注的物质。换句话说,1ppm等于1/1,000,000。 ppb:全称为"parts per billion",中文指十亿分之一。表...
ppq - parts per quadrillion (1 / 1,000,000,000,000,000 or 10-15) An alternatively mass related unit to measure larger concentration levels is weight percent which can be expressed as weight percent = 100 mc / ms (2) ppm vs. Mass per Unit Volume The concentration of a component ca...
That's because 1 L of water weighs 1000 g, so there is one solute particle per thousand total particles, and thus one thousand per every million. How do I calculate ppm from the volume concentration? To get ppm by volume: Take the solutions' molar concentration in mol/L. Multiply it ...
Parts Per Million (ppm) Converter for Gases This converter calculates the measured value in units of [ppm] into units of [mg/m3] and visa versa. The unit ppm is used in several branches in different ways. The use of ppm therefore has to be specified in the input fields below, in the...
agovernment house ,canberra auslia 政府房子,堪培拉auslia [translate] aPPM (parts per million), or as a weight per unit area for each substance. It is applicable to homogenous materials. PPM (零件每百万),或者作为重量每个单位区间为每种物质。 它是可适用的对同源材料。 [translate] ...
ppm is an abbreviation of parts per million. ppm is a value that represents the part of a whole number in units of 1/1000000. ppm is dimensionless quantity, a ratio of 2 quantities of the same unit. For example: mg/kg. One ppm is equal to 1/1000000 of the whole: ...