ppm.

ppm.的基本解释

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[医] 兆比率(百万分之几)

与ppm.相关的网络例句 [注：此内容来源于网络，仅供参考]

The cattleya cut flower treated with 0.1 ppm, 1 ppm and 5 ppm ethylene for 24 hrs at 25℃compared with the control. The control had normal flower at 2nd day after treating, but 0.1ppm ethylene treatment had slight wilt in the petal and still had ornamental value. Treatments with 1 ppm and 5 ppm ethylene had complete wilt in the corolla and lost ornamental value. The treatments with different concentration of ethylene caused considerable flower senescence, the decrease of water uptake and fresh weight of cattleya cut flower in the vase. Data showed that cattleya cut flower was one of orchids very sensitive to ethylene response.

嘉德丽雅兰切花以不同浓度外加乙烯(0.1ppm、1PPm、5PPm)於25℃下处理24小时后，瓶插第2天，以0.1ppm处理者切花花瓣已稍萎凋，以1ppm及5ppm处理者，花朵已完全萎凋而无观赏价值，对照组花朵仍然完好，乙烯处理之切花吸水量和鲜重亦於第2天明显下降，显示嘉德丽雅兰切花对乙烯非常敏感。

The results indicated that: the water content of product decreased from 2580 PPm to 50 PPm by sweep gas method in the water/chloromethane system and the separation factor of water/chloromethane was 74800; the water content of product decreased from 2580 PPm to 36 PPm by vacuum method in the water/chloromethane system and the separation factor of water/chloromethane was 32500; the separation factor and the flux of the dehydration of dichloromethane were 39900 and 0.172 kg·m~(-2)·h~(-1),respectively; the separation factor and the flux of the dehydration of trichloromethane at 50℃were 57300 and 0.564 kg·m~(-2)·h~(-1), respectively; the separation factor and the flux of the dehydration of carbon tetrachloride at 60℃were 68200 and 0.612 kg·m~(-2)·h~(-1),respectively.

结果表明：利用吹扫气法，对于水/一氯甲烷操作体系，其分离因数高达74800，产品水含量由进料侧的2580 PPm，降低到50 PPm；利用抽真空法，对于水/一氯甲烷操作体系，其分离(来源：93ABC论9090文网www.abclunwen.com)因数高达32500，产品的水含量由进料侧的2580 PPm，降低到36 PPm；对于二氯甲烷脱水体系，水/二氯甲烷分离因数和渗透通量分别为39900和0.172 kg·m~(-2)·h~(-1)；对于氯仿脱水体系，操作温度为50℃时，水/氯仿分离因数和渗透通量分别为57300和0.564 kg·m~(-2)·h~(-1)；对于四氯化碳脱水体系，操作温度为60℃，水/四氯化碳分离因数和渗透通量分别为68200和0.612 kg·m~(-2)·h~(-1)。

The 1H-NMR spectrum collected on a 200 MHz instrument had a doublet at a chemical shift of 5.88 parts per million which integrated to one proton, a multiplet at 4.19 ppm which integrated to one proton, a singlet at 2.5 ppm which integrated to six protons, a doublet at 1.60 ppm which integrated to three protons, and a broad peak at 0.8 ppm which integrated to two protons.

该核磁共振谱收集在一个200 MHz的仪器有一个双线在化学位移5.88百万分之的综合，以一质子， 1 multiplet在4.19 ppm的综合，以一质子，单在2.5 ppm的综合到6个质子， 1双在1.60 ppm的综合三个质子，和广阔的高峰期， 0.8 ppm的综合两个质子。

与ppm.相关的网络解释 [注：此内容来源于网络，仅供参考]

Asynchronous Transfer Mode：异步转移模式

电接口类型 输出口AIS比特率(ppm)指标要求 输出口AIS比特率(ppm)典型值电接口类型 输入允许频偏(ppm)指标要求 输入允许频偏(ppm)典型值时钟接口 输出抖动(UIpp)指标要求 输出抖动(UIpp)典型值ATM 异步转移模式(Asynchronous Transfer Mode)BMS 计费管理系

fico：吸入的一氧化碳气浓度,单位

FICO 吸入的一氧化碳气浓度,单位:ppm | FIHe 吸入的氦气浓度,单位:% | FACO 肺泡气的一氧化碳浓度,单位:ppm

ppm：百万分之几

ANSI/EIA 554-1-1996 百万分之几(PPM)平均出厂质量指标的评估ANSI/EIA 555-1988 验证符合规定质量等级(PPM)批量验收程序