查询词典 not necessary

By exploiting the important properties of robot dynamics, the second strategy removes the requirement of a priori bound on parametrer uncertainty and weakens the restriction on external disturbance. The only requirement is to know an upper bound of the norm of inertia matrix, which is not necessary to be the smallest.

第二种算法利用机器人固有的结构特性，减弱了目前已有文献对未建模扰动的限制，它不要求预先知道机器人结构参数的不确定范围，仅要求已知实际惯量矩阵范数的一个上界。

It is not necessary for you to go on a diat but you'd better be abstinent,and never eat too much.

你不必节食，但要饮食有度，不能吃得过饱。

It is not necessary for the orthoses to be corrective unless there is underlying pathologies in the foot, a semi rigid support will offer the best compromise as fully rigid supports are often not tolerated well by players.

如果脚部没有疾病的话，不是一定要使用足底矫形器的，相对于一个非常坚固的支撑，一个半坚固的支撑是最好的选择，因为一般的球员会没有办法习惯一个非常坚固的足底支撑。

Where the subject-matter is insured by a voyage policy 'at and from' or 'from' a particular place, it is not necessary that the ship should be at that place when the contract is concluded, but there is an implied condition that the adventure shall be commenced within a reasonable time, and that if the adventure be not so commenced the insurer may avoid the contract.

1在保险标的是按&在和从&或&从&某一特定地点开始的航次保险单承保之场合，在签订该合同时，该船无需在该指定地点，但有一项默示条件，即该冒险应在合理时间内开始，如果该冒险未在该时间内开始，保险人可以撤销合同。

Where the subject-matter is insured by a voyage policy 'at and from' or 'from' a particular place, it is not necessary that the ship should be at that place when the contract is concluded, but there is an implied condition that the adventure shall be menced within a reasonable time, and that if the adventure be not so menced the insurer may avoid the contract

（1）在保险标的是按&在和从&或&从&某一特定地点开始的航次保险单承保之场合，在签订该合同时，该船无需在该指定地点，但有一项默示条件，即该冒险应在合理时间内开始，如果该冒险未在该时间内开始，保险人可以撤销合同。

But I did not bring themhome then;the school doctor said it was not necessary.

但是我没有把她们也接回家；学校的医生说用不着。

The signal frequency received by the antenna is very high, normally it can exceed one GHz. Usually the sample card can not collect so high frequency signal, and it is not necessary to collect the total signal because what we need is the peak value of the signal, and then to know the severe degree of the PD of Transformer relatively .

天线接收的超高频信号频率很高，可达到上G，要采集此信号对采集卡要求太高，而且完整地采集如此高频的信号意义也不大，我们需要的是超高频信号的峰值特征，从而了解变压器内部局部放电的相对严重程度。

However,the presence of any substances not necessary for the crosslinking, such as extenders, plasticisers and fillers, is not permitted

为了进行上述试验，可以加入交联所需的硫化活化剂或促进剂；也允许合有注释五2及3所述的物质。

Compared with the traditional method, this new method has some advantages:①centrifugation is not necessary, therefore, separation of high molecular weigh DNA is possible;②phenol, chloroform and other toxic organics are not needed;③separation is more efficient and less timeconsuming④the quality of DNA isolated in this way is very high.

当样品裂解液与杂交液1：1混合并用磁性微粒进行小麦黄化苗和种胚的DNA分离与纯化时，效果非常理想。与传统的纯化方法相比，该法具有①快速、简便；②无有机试剂污染；③无需离心分离；④得率和纯度均较高等优点。

Of ? chaste tree closelies question adept of of lineal descent of show off yellow Guan seeks extensive plaque? is not them more saying meeting affects a rank, as to why such, be afraid only him Baidu knows, so we were not necessary to spend too much time in these places.

这就说明了一个问题，SITE：网站，首页不在第一其实真的不重要，更不是他们说的会影响到排名，至于为什么这样，恐怕只有百度自己知道，所以我们没有必要在这些地方花太多的时间。

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。。。。