Correct

采用 vs 采取 vs 采纳

/ cǎiyòng vs cǎiqǔ vs cǎinà /
Strokes

Definition

采用, 采取, and 采纳, all are Verb, which means [adopt].

Example

采用, 采取, and 采纳, all are Verb, means "adopt".
1) 采用 means "(after weighing the pros and cons) to adopt or use a material or a style", its object can be concrete "materials" or abstract "ways";

2) 采取 means "choose an attitude or implement a guideline, etc";

3) 采纳 means "(the higher authorities) consider and accept (sb.'s advice, etc.)";

4) 加以 (used before a disyllabic verb to indicate that the action is directed towards something or somebody mentioned earlier)may precede 采用 and 采纳.

5) In the examples ①~⑥ of, the three words are not interchangeable.
1
Xuébào
学报
zhǔbiān
主编
juédìng
决定
cǎiyòng
采用
piān
gǎozi
稿子
  

The journal editor-in-chief decided to accept the article.

2
Zhèjiā
这家
yuàn
医院
cǎiyòng
采用
le
xiānjìn
先进
de
liáo
医疗
fāng
方法
  

The advanced treatment means has been employed in this hospital.

3
men
他们
cǎi
采取
xíngdòng
行动
duìfu
对付
kǒng
恐怖
fèn
分子
  

They have taken actions to deal with those terrorists.

4
Méi
xiǎngdào
想到
duì
zhè
jiàn
shì
cǎi
采取
wénwèn
不闻不问
de
tàidu
态度
  

Surprisingly, she adopted a "none-of-my-business" attitude.

5
Xiàozhǎng
校长
jīng
已经
cǎi
采纳
le
zhège
这个
xuésheng
学生
de
jiàn
意见
  

The principal has accepted the proposal made by the student.

6
men
我们
de
xiàng
jiàn
建议
  
,
ōuzhèng
区政府
jiāng
jiā
加以
cǎi
采纳
  

Our proposals will be adopted by the District Government.

采取 can also mean "to sample (figer prints, blood group, etc)"
7
Jǐngfāng
警方
zài
fànzuì
犯罪
xiànchǎng
现场
cǎi
采取
zhǐwén
指纹
  
,
bìng
dāngchǎng
当场
jìnxíng
进行
fēn
分析
  
jiàndìng
鉴定
  

he policemen sampled the fingerprints on the criminal spot and analyze and identify them then and there.

采用 and 采取 are interchangeable only in some cases when the object is style, measure, etc. with an abstract meaning.
8
men
他们
cǎiyòng
采用
  
(
cǎi
采取
  
)
yōu
择优录取
de
fāngshì
方式
录取
xīnshēng
新生
  

They enrolled only the outstanding students.

9
Jiāotōng
交通
guǎn
管理
mén
部门
cǎiyòng
采用
  
(
cǎi
采取
  
)
gāo
科技
shǒuduàn
手段
zhǐhuī
指挥
jiāotōng
交通
  

The transportation department adopted hitech to direct the traffic.

采用 and 采纳 can also interchangeable in some cases, that is, when the object is both the adopted method and the accepted proposal.
10
Shàng
上级
lǐngdǎo
领导
cǎiyòng
采用
  
(
cǎi
采纳
  
)
le
zhège
这个
fāngàn
方案
  

The leaders have adopted the plan.