您要查找的是不是：
- Therefore reasonable conformability of preventive maintenance cycle is necessary demand of scientific equipment maintenance decision. 因此，合理的确定预防维修周期是对设备进行科学维修决策的必然要求。
- Social role endows the undertaker with a special social relation, which is embodied by responsibility, e.g. duties and obligations, so undertaking responsibilities is a necessary demand of the role. 社会角色赋予了角色承担者特殊的社会关系，这种社会关系往往通过职责体现，包括责任和义务，担当职责是角色的必然要求。
- It is necessary that he be sent there at once. 有必要马上派他到那里去。
- If necessary they will go to the authorities themselves to press the demand. 如果必要，他们将自己去找当局，敦促他们接受这项要求。
- Soft drinks are much in demand this hot weather. 这么热的天气，软饮料需求量很大。
- Is it necessary for me to attend the meeting? 我真的必须参加这个会议吗？
- He's quite within his rights to demand an enquiry. 他完全有权要求进行调查。
- Such a demand borders upon folly. 提出这种要求简直是愚蠢。
- She will make necessary arrangements. 她会作好必要的准备。
- Demand is outstripping current production. 现在需求逐渐超过了生产能力。
- Some adjustment of the lens may be necessary. 可能有必要调节一下镜头。
- My wife's unreasonable demand has me up a tree. 我妻子的无理要求使我很为难。
- I consider it absolutely necessary. 我认为那绝对必要。
- We anticipate that demand is likely to increase. 我们预料需求可能增加。
- I feel it is absolutely necessary. 我觉得这是绝对必要的。
- The matter cannot rest there I demand an apology. 事情不能就此罢了－－我要求向我道歉。
- It was agreed that another meeting was necessary. 大家一致认为有必要再开一次会。
- We've scaled up production to meet demand. 我们已经扩大了生产以满足需求。
- I think it is necessary to learn science. 我认为学科学是必要的。
- If necessary, I'll be glad to run you about. 如果需要，我们乐意用汽车接送你。
