In some cases, it is justifiably necessary or desirable for them to withhold information.
有的情况下，隐藏信息是必要或可取的。
These verbs mean to be without something, especially something that is necessary or desirable.
这些动词的意思是没有某物，尤指该物是必须的或是合乎需要的。
Of course, it may not be necessary or desirable to build a cat or a human brain, since we already have fully functional cats and humans.
当然，真的制造一个猫脑或者人脑没有必要也很不值得，因为我们已经有了具备全部功能的人和猫。
In highly complex scenes, it is sometimes necessary or desirable, but not ideal, to render only the bounding boxes of unselected objects.
在高度复杂的情景下，有时只绘制非选择对象的边框是必要的。或者可以满足要求，虽然不是最完美的。
Such a change is all the harder for Americans to accept because few think it is either necessary or desirable-especially in relation to China.
这种变化是美国人非常难以接受的，因为很少有人认为有必要或值得——特别是在同中国的关系上。
Sophisticated programs like Maya allow animators to create vibrant worlds from scratch, but that isn't always necessary or desirable in biology.
诸如Maya这样的复杂计算机程序让动画师们可以从无到有的创造出一个充满活力的世界来，但在分子领域，创作过程并非是如此随心所欲。
The Engineer may, if in his opinion it is necessary or desirable, issue an instruction that any varied work shall be executed on a day-work basis.
如果工程师认为必要或可行时，可以发出指示，规定在计日的基础上实施任何变更工作。
We will disclose a conflict to the relevant clients where it is not practicable for us to manage it effectively or we otherwise think disclosure is necessary or desirable.
在我方无法有效处理冲突或我方认为有必要披露时，我方将会向相关客户披露该冲突。
In particular, but without prejudice to the generality of the foregoing, to execute in our name and on our behalf (with all such amendments thereto as he shall deem necessary or desirable).
特别是，但在不影响上文的一般性原则下，〕以本公司的名义并代表本公司签署(连同其视为必要或适宜的以下文件的一切修订)。
Sophisticated programs like Maya allow animators to create vibrant worlds from scratch, but that isn't always necessary or desirable in biology. A company called Digizyme in Brookline, Mass.
诸如Maya这样的复杂计算机程序让动画师们可以从无到有的创造出一个充满活力的世界来，但在分子领域，创作过程并非是如此随心所欲。
This might happen when it is desirable to centralize the enterprise models but necessary to maintain permanent variance in one or more divisions, business units or regions.
当需要集中企业模型而不需要维护一个或者多个部门、商业单位或者地区之间永久性的差异性时，这种情况就会出现。
Modify your plan if desirable or necessary, as the position changes.
如果值得或是需要的话，当棋势发生变化了，可以改变计划。
Many or the data acquisition systems acquire this data at very high speeds and very little computer time is left to carry out any necessary, or desirable, data manipulations or reduction.
在高速度和很少的电脑使用下数据采集系统获得数据是为进位输出提供必要，或合理的数据处理或简化。
Many or the data acquisition systems acquire this data at very high speeds and very little computer time is left to carry out any necessary, or desirable, data manipulations or reduction.
在高速度和很少的电脑使用下数据采集系统获得数据是为进位输出提供必要，或合理的数据处理或简化。
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