难得到的

G. K. Chesterton observed that true contentment requires the power to get the most out of any situation. Doing this, he said, is both arduous and rare.

根据查特顿观察所得，真正的满足，需要有能力在任何境况下仍能尽量从中得益；他认为这是一件很难的事，也甚少人做得到。

Devising policies that make it harder for people to get their jobs done encourages them to circumvent the policy.

制定政策，使之更难的人得到他们所做的工作，鼓励他们来规避政策。

Nanotechnology has demonstrated superiority to improve dissolubility and low bioavailability of insoluble medicines, such as realgar.

纳米制剂技术的应用将使这类难溶药物的溶解性改善，生物利用度得到提高。

This particular bonus has become famous because of the ease with which you can get it.

这种特殊的奖金，已成为著名的难易程度，因为与您可以得到它。

How to determine the isomorphism of graphs is a difficult problem of graph theory,which is not completely solved so far.S.M.

图同构的判定性问题是图论理论中的一个难问题，至今没有得到彻底解决。

We identified studies primarily by searching Ovid Medline (1966 – May 21, 2004) for terms related to postoperative analgesia with CPNB and opioids.

但由于这些研究包含的样本数较少，因而很难从统计学角度得到明确的结论。

Sufferers of back pain know how difficult it can be to obtain a restful sleep.

患者的背部疼痛很难知道如何可以得到舒适的睡眠。

It provides the decision that customer used for current history data supports, these data is very difficult in traditional operation type database or can't get, say more tangibly, the data warehouse is a kind of system construction.

它提供用户用于决策支持的当前历史数据，这些数据在传统的操作型数据库中很难或不能得到，更确切地说，数据仓库是一种体系结构。

Practically unhittable against the Orioles in his last outing despite dealing with diminished velocity, Contreras will need to be on top of his game against his ex-teammates.

Y8 v' Y v4 j* t5 ^纵使他的球速已经降低，但是上一场对金鹰，实际上仍然是让对手很难打得到，孔卓拉斯面对到他以前的东家，可是得拿出混身解数才行。

Mountain bikers get a big thrill in riding on unpaved, rough terrain, even though this is hard on a bicycle.

山地自行车运动得到很大刺激的骑在未，崎岖的地形，虽然这是很难骑自行车。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。