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含量水平

网络ppm

含量水平

含量水平

含量水平

ppm

...量作物栽培条件采样部位采样时期作物硝态氮含量水平（ppm）低玉米田间田间田间田间叶鞘下半段叶鞘下半段果穗 …

2

Toenail nicotine levels were found to be a strong predictor of lung cancer .

发现指甲中尼古丁含量水平是预测肺癌的重要指示。

3

The uniform 20 percent oxygen level it has found turns out to be " fortuitous " as one scientist put it.

它混到了平均 20%的氧含量水平，照一位科学家的说法是 “撞了大运 ”。

4

A few years ago , the same group found that osteocalcin plays a role in maintaining the body 's glucose levels .

几年前，该研究组就发现造骨细胞影响了人体的葡萄糖含量水平。

5

6

Patients can be monitored by using standard screening tools to assess pain , and urine tests to detect medication levels .

应该用标准的治疗方案控制疼痛，同时检测其尿液的药物含量水平。

7

11

They found how it works -- by raising levels of a compound called tetrahydropapaveroline or THP.

实验发现它是怎样发挥作用的，它提高了一种叫 THP 的化合物的含量水平。

12

Compared with sediments from other areas, OCPs concentrations in sediments were much higher in the studied area.

与国内其他同类样品相比，研究区各化合物的含量水平明显偏高；

13

Type 1 diabetics have to carefully monitor their blood glucose levels and routinely administer insulin to keep them down.

I 型糖尿病患者需要仔细的检测血液中葡萄糖含量水平，并持续的服用胰岛素来控制血糖。

14

The law requires that the sodium level be only 25% less than the original product .

法律上规定产品的钠含量水平只要比传统产品少 25%就可以了。

19

The content of ascorbic acid increases in parallel to the rise in the activity level ofperoxidase.

其抗坏血酸含量水平与过氧化物酶的活性水平具有平行增长关系。

21

But sometimes the right answer is the simplest : it turns out CO2 levels were not that high after all.

但最简单的答案通常就是正确答案：CO2 含量水平在冰河期并不高。

22

Levels of free testosterone found in the 300 -microgram -dose group were close to those usually seen in women ages 18 to 24 years .

研究发现，在 300 微克小组，其组员身体内游离睾酮含量水平与 18-24 岁女性通常含量非常接近。

23

But virus content level in 1b type much higher than 2a type . (4) HCV genotypes was not correlated with malignant tumor of liver.

但基因 lb 型的病毒含量水平明显高于 2a 型。（4 ）丙型肝炎患者是否合并肝恶性肿瘤与病毒基因型分布无关。

24

Mothers who had low iron status also had babies with low iron levels .

铁含量低的母亲，她的宝宝的铁含量水平也比较低。

25

From Fig . 4 it can be seen that skeletal copper containing this level of Co had negligible activity for the water gas shift reaction .

从图 4 可以看出，骨架铜在这种一氧化碳含量水平上对水气转化反应的活性可以忽略不计。

27

Zinc can also reduce the cadmium content in body and mind .

锌也可以降低身体和大脑中的镉含量水平。

28

How come a big ice age happened when carbon dioxide levels were high ?

在大冰河期，二氧化碳含量水平怎么会高呢？

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The researchers are working to construct a record of carbon dioxide levels in the atmosphere over the last 100 , 000 years .

现在，研究者们正在构建过去十万年间大气中二氧化碳的含量水平。

30

When testing was banned in the '60s, C-14 levels dropped .

当核武器试验在 60年代被禁止后，碳 14 的含量水平便下降了。

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