1) Easy to learn But difficult to master
易学难精
2) It is easy to learn English, But it is difficult to attain perfection in it.
英语易学难精。
3) teach the cat the way to the kirn
坏习惯易学难改
5) easily-floated but hard-separated
易浮难分
1.
Based on the characteristic that the mineral is easily-floated but hard-separated and the mineral size is distributed overly differently,after eliminating the effect of copper ions by sodium sulfide,the copper,lead,zinc is floated by compounding depressant and compounding collector one by one.
针对某地含银铜铅锌多金属硫化矿易浮难分、嵌布粒度极不均匀的特点,采用优先浮选工艺流程,以硫化钠消除次生铜离子的影响,组合药剂浮选铜铅锌,铜铅粗精矿再磨显著提高铜铅锌分选效果,获得了较佳的分选指标,铜精矿含铜23。
6) priority to the easy
先易后难
1.
The strategy of giving priority to the easy is suggested to paper making enterprises in their access to international market, withconcentration on the introduction to major access patterns.
提出我国造纸企业应采取先易后难的策略进入国际市场,重点介绍了主要的进入模式,并认为企业要参与国际化竞争,需练好内功,做强做大。
补充资料：难易
1.艰难与容易。 2.偏指艰难。 3.偏指容易。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条