必需

Retinal laser photocoagulation is necessary for the peripheral lattice retinal degeneration associated with hole, vitreous traction, local detachment, aphakic eye or pseudoplatic eye to prevent retinal detachment, and it is effective and safe.

对伴有干性裂孔、玻璃体牵引、一眼已有视网膜脱离、无晶状体或人工晶状体眼的周边部视网膜格子样变性进行预防性激光光凝治疗是必需、安全和有效的。

All the essential materials for the Saint's biography are to be found in his writings, especially in those written after the year 350, when the Apologia contra Arianos was composed.

所有必需的材料为圣人的传记，是被发现在他的著作，特别是在这些书面报告后，一年350 ，当纵容矛盾arianos组成。

To emphasize it gives the apologist several advantages:(1) Inquirers sometimes tell us that there is no point in investigating Christianity, for if they did that, they would also have to investigate all the other religions, philosophies, and ideologies in the history of thought – an impossible task, to be sure.

强调基督教位格性的世界观，能给护教者们带来几方面的好处﹕(1)有些慕道朋友对我们说﹕「探索基督教是毫无意义的，因为若要进行这样的探索，我们必需同时研究思想史上所有其他的哲学、宗教与意识型态，这当然是不可能的。

This is required in order for the app to work correctly.

这是必需的，为了使应用程序才能正常工作。

If you are not familiar with the apparel market, you need to be familiar with on again

如果你对服装市场不熟悉的话，你就必需先熟悉了再做

However, we realized someday that adulthood means more than appetence, it implies courage, liability, adamancy and sacrifice when necessary.

但是有一天，我们终于发现，长大的含义除了欲望，还有勇气、责任、坚强以及某种必需的牺牲。

To get a better appraisal on its capital market value, company A may need to change its stock-holder's structure.

甲公司若欲提高市场对其股票的评价，则必需对股东结构进行改变。

This is necessary in only approximately 1 out of every 100 patients.

这是必需的在唯一的大约 1 从每一 100位病人。

Therefore, the appurtenances involved must be described and their presence explained in your own words of teach/learning, for you have the proper attitude for the required results.

因此，包含的附属物必须被用你们自己教导/学习的词汇描述说明，因为对于必需的效果，你们要有正确的态度。

Archimedean mathematical thought gives us the inspiration: the ingenious physical deduction is the important method of the scientific discovery; the strict mathematical deduction is the necessary step to confirm the result; the several basic principles to be selected act as foundation of deduction; devote oneself to the scientific truth and do not seek secular profit.

由Archimedes的数学思想得到的启示是：巧妙的物理论证是科学发现的重要方法；严格的数学论证是确立结论的必需步骤；要精选若干基本原理，作为论证的基础；要献身科学真理，不为俗世需求所动摇。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。