大家都搜：
所需的力
1、required for───要求……（required是require的过去式和过去分词）
2、propagation required───需要传播
3、required cl───所需cl
4、authentication required───需要身份验证
5、if required───如果需要
6、required course───n.必修课程
7、action required───需要采取的行动
8、required field───必填项；必填字段
9、required───adj.必需的；（美）必修的；v.需要（require的过去式及过去分词形式）；要求
1、The single unit cap and lifting lever permit manual valve opening (testing) with low required force on the lever.───这种一体式阀盖和提升杆使得检测人员只需轻轻扳起测试杆即可人工手动开启阀门进行测试。
2、We'll have the resources we need to carry out the mission requirements of the required force.───“我们将有我们需要执行必需的力量的使命要求的资源”。
3、Large Hadron Collider (LHC) is the representative of a new generation of accelerators, in order to achieve the required force field of the accelerator's magnets must be cooled using liquid helium.───大型强子对撞机(LHC)是新一代加速器的代表，为了达到所需力场，该加速器中的磁体必须采用液氦进行冷却。
4、Figure 1 shows how the end of life force may decrease below the required force, even though the design force is well above the requirement.───图- 1显示了末期触点压力是怎样降低至要求的力之下的，即便设计力大于要求的力。