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Do you think it necessary to have any further improvements in the control system of blowout preventer?

你认为有必要对防喷器控制系统再做进一步改进吗？

Bly language instructions can be embedded within C code, so linking in separate assembly-language modules is not necessary.

简单，而且汇编语言指令还能内嵌到C代码中，所以，不需要连接独立的汇编模块。

The National Board of Health shall appoint a number of expert members, all of whom have professional qualifications, for specialist areas where this is considered necessary for the processing of claims, cf.

第3条 为了第4条所规定的对赔偿请求加以处理的需要，国家卫生部应任命一批具有职业资格的相关专科领的专家成员。

Mr Trichet must establish a rule that the board of governors always takes a vote, ensuring that the ECB makes monetary policy decisions when necessary, not when it is politically expedient to do so.

特里谢先生必须制订一项规则，要求任何决策均由理事会表决做出，从而确保欧洲央行在制订货币政策时确实从实际需要出发，而不是出于政治利益。

Not technically thieves, the American Bobtail's love of shiny objects makes it necessary to keep jewelry boxes closed and even locked.

美国短尾猫不是高级的贼，但是它们对于发亮的东西的喜爱使你必须观赏甚至锁上珠宝匣。

From the above we can learn, the use of body language in English teaching is necessary and practical.

从上述我们可以学习，使用肢体语言在英语教学中是必要的和可行的。

It is not necessary to discuss at length a minor question which has been raised by Boeckh, respecting the imaginary date at which the conversation was held the year 411 B.

我们不必详尽地去讨论波厄克提出的那种枝节问题，诸如去想象某篇对话发生的日期（虚构出公元前411年他写了这篇或者那篇对话之类）。

As one of the most important necessary part of high speed locomotive,the bogie frames property has significant impact on running quality and safety of locomotive.

转向架构架作为机车最关键的部件之一，其性能对机车的走行品质和安全性具有重要影响。

As one of the most important necessary part,the bogie frames property has significant impact on running safety of EMU .

转向架构架是动车组的关键部件之一，其性能好坏对动车组运行安全性具有十分重要的影响。

Boil for 2 hours over high heat, replenishing the water if necessary.

高温下煮大概2个小时，如果需要的话及时补充水。

Consumer preference ; fuzzy partial ordering relation ; condorect function

消费者偏好；模糊偏序关系； condorect函数

And she doesn't have a cat, she has a Mexican hairless.

而且她不养猫，她养了一只墨西哥无毛犬。