不可

Never judge a man by his appearance.

人不可貌相；不可以貌取人

Most of the traditional non-renewable energy, because it is non-renewable, will one day be human used end.

传统能源大多数为不可再生，由于是不可再生，总会有一天被人类利用完。

This implies changing production and consumption patterns to eliminate the use of disposable, non-reusable, non-returnable products and packaging.

这就是说，要改变生产和消费方式，从而杜绝使用一次性的、不可重复使用的、不可回收的产品和包装。

Neither party will be liable for nondelivery, misdelivery or late delivery (other than the payment of money due hereunder) caused by circumstances beyond its reasonable control, including, among others, war, civil strife or commotion, riots, strikes, fires, floods, acts of God, inability to obtain materials, failure of carriers or compliance with any law, regulation or governmental order.

任何当事人将不会为任何因为不可控制的情况产生的未交付货物、交付错误或延迟交货。不可控制的情况包括战争、国内斗争或暴乱、骚乱、罢工、火灾、洪灾、自然灾害、无力获得材料、承运人的失误、遵守法律、法规或政府令。

As a user of this Web Site you are granted a nonexclusive, nontransferable, revocable, limited license to access and use this Web Site and Content in accordance with these Terms of Use.

作为本"网站"的用户，您被授予一项非独家的、不可转让的、不可撤销的和有限制的许可以按照本使用条款进入和使用本"网站"以及"内容"。

Such license shall be a nonexclusive, nontransferable, irrevocable, royalty-free, worldwide license.

上述许可应当是非排他性的、不可转让的、不可撤销的、免费的和全球性的许可。

Firstly, we give a necessary and sufficient condition for a nonnegative square matrix to be decomposed into a product of a finite number of irreducible nonnegative matrices in chapter 1. We prove it by using Frobenius normal form in combinational matrix theory and associated directed graph in graph theory. In addition, we can limit the number of factors to three, and construct every factor.

首先，在第一章中，我们给出了一个非负矩阵可以分解成有限多个不可约非负阵的乘积的充要条件，证明过程利用了组合矩阵论中的Frobenius标准型和图论中的伴随有向图，并且将乘积中的因子个数限制到三个，具体地构造出了分解式中的每个不可约非负阵。

Force Majeure: The sellers shall not hold any responsibility for partial or total nonperformance of this contract due to Force Majeure. But the sellers shall advise the buyers on time of such occurrence.

人力不可抗拒：如因人力不可抗拒的原因造成本合同全部或部分不能履约的，卖方概不负责，但卖方应将上述发生的情况及时通知买方。

The question of searching characteristic points or straight lines on moving rigid body is decomposed into two relatively independent sub-questions. The first one is to evaluate the characteristic of points and straight lines on moving rigid body, whose mathematics model is a kind of special non-differential max-mini optimal problem with inequality constraints. By the method of Saddle-point Programming and maximum entropy, the problem can be transformed as a differential optimal problem with single objective. The second oner is to search approximative character points or straight lines on moving rigid body within design space, whose mathematic model is nonlinear and non-differential problem with multiple constraints.

本文将在运动刚体上寻找特征点或直线的优化问题分解为两个相对独立的子问题，一是对运动刚体上点或直线的特征性评定，其实质是平面曲线的圆度或直线度的评定问题，优化模型是以最大误差为最小作为优化目标的约束不可微的优化问题，本文采用鞍点规划和极大熵方法，将其转化为单目标可微优化模型；二是在设计空间内，寻找运动刚体上特征性评定指标最小的近似特征点或直线，其优化模型是非线性、多约束的不可微优化问题，本文提出用遗传算法和BFGS局部搜索法相结合来求解。

45 Barter not a friend for money, nor a dear brother for the gold of Ophir.

不可为了钱财而出卖朋友，也不可为了敖非尔的金子，而离弃你最亲爱的兄弟。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐