Operation
[ ,ɑpə'reʃən ]
第1级
其它 Other
n. 操作，经营;手术;[数]运算;作用;
💡 词根助记
oper 工作 + ation 表示行为、状态、过程 → n.操作；手术；运算
📝 例句
A multistage operation improves the thermal efficiency.
多层操作可以提高热效率。
An analog multiplier whose operation is based on the identity:
xy=［(x+y)2-(x-y)2］/4 incorporating inverters, summers and square-law function generators.
The operation of this machine is simple.
这个机器的操作很简单。
He continued his operations in cotton futures.
他继续进行棉花期货交易。
The operation of a railroad needs many men.
铁路的营运需要很多人。
✅ 同义词
🔤 词根
-ion表示“行为结果”
常见变体有tion、ation、ition
📖 牛津释义
operation
n
1 [U] way in which sth works; working 运转; 操作; 工作
I can use a word processor but I don't understand its operation. 我能使用文字处理机, 但不了解其运转机制.
2 [C] activity, often involving several people and/or spread over a period of time 行动
mount a rescue operation 发起营救行动
at each stage of the massive police operation 在警方大规模行动的每一阶段上
The entire operation will take about five days. 整个行动约需时五日.
3 (also op) [C]
~ (on sb) (for sth); ~ (to do sth) (medical 医) action performed by a surgeon on any part of the body, to treat or remove by cutting a diseased or an injured part 手术
undergo an operation for appendicitis 接受阑尾切除手术
perform an operation to amputate his leg 把他的一条腿截除
a liver transplant operation 肝脏移植手术.
4 [C] business company 公司: a huge multinational electronics operation 一家大规模的跨国电子公司.
5
(a) [C usu pl 通常作复数]
(also ops) movement of ships, troops, aircraft, etc in war or during training （作战或训练中的）军事行动, 作战行动
the officer in charge of operations 军事行动指挥官.
(b) Operation [sing]
(used as part of a code name for military campaigns 用作军事行动代号的一部分)
Operation Overlord 领主行动.
(c) [C usu pl 通常作复数]
planned campaign in industry, business, etc （工商业等的）有计画的业务活动
involved in building, banking, business operations 经营建筑业、 银行业、 商业
operations research, ie study of business operations to improve efficiency in industry运筹学.
6 [C] (mathematics 数) addition, multiplication, subtraction, division, etc 运算.
7 (idm 习语) be in operation; bring sth/come into operation (cause sth to) be/become effective （使某事物）生效, 起作用
When does the plan come into operation? 这项计画什麽时候实施?
Is this rule in operation yet? 这条规则生效了吗?
🔁 扩展释义
*[,ɒpә'reiʃәn]n. 操作, 动作, 手术, 运算, 作用, 业务【计】 运算【医】 手术【经】 操作, 营业, 经营相关词组: perform an operation on a patient for in operation
🏥 医学释义
手术，操作，运转
🌿 同词根单词
📖 同为「高中」词汇
查看全部高中词汇 ›🗣️ 情景例句
I have no time for extra-curricular activities.
我可没时间参加课外活动。
Practice makes perfect.
熟能生巧。
On the third lap, the Class 3 and Class 1 runners both ran very fast.
在跑第三圈时，3班和1班的运动员都跑得非常快。