opa怎么读,opa的音标和真人发音
  

opa是什么意思,opa的意思是

abbr.odd-paired 奇数对;optical plotting attachment 光学测绘附加装置;optoelectric pulse amplifier 光电脉冲放大器

opa 的用法和双语例句“点击”或“选中”例句中的单词,就可以看到词义解释

Even so , the opa was never popular .
尽管如此,价格管理局从未受到欢迎。
His new business , opa cove , sells sporting good products for children .
他新商行opacove,出售儿童运动好产品。
The first element is the direct costs of plugging the well and cleaning up the pollution , which under the oil pollution act ( opa ) , passed in 1990 after the exxon valdez spill , must be borne by the company .
第一个要素是堵塞漏油井、清理污染的直接花费,这些要遵守1990年埃克森瓦尔迪兹号漏油事件后的《油污法案》,必须由该公司来运载。