不必

To incarcerate it simple, the questions have been compressed down to just six; this way, powwow can be broader, and no unified feels contrived to assert their civic affiliation or bearing, or ends up directing questions to bloggers with whom they're already buddy-buddy.

所以我请求来自台湾的Blogger们来谈谈这些问题，为了简化，问题已经压缩到六个，这样交流面更宽一点，不必一定伸张自己的颜色立场，也不至于只和自己熟悉的部落客进行引导问答。

When we consider the situation of the human mind in nature, its limited plasticity an d few channels of communication with the outer world, we need not wonder that we grop e for light, or that we find incoherence and instability in human systems of ideas.

当我们认识到，在本质上，人类心灵的可塑性是有限的，它同外部世界进行交流的渠道屈指可数。那么我们就不必惊奇，我们为何要追寻光明，或者在人类构筑的思想体系中为何经常发现相互矛盾和变化无常的东西。

You don't have to worry about saying something incorrectly or not finding the right word.

你不必担心说的话有什么不对或是找不到恰当的词。

The advantages of this method are:① the range of the exponent i of the undefined functions f from-N to N;② the indeterminate specific form of function so that we can get more new exact solutions.

点在于：①待定函数f的指数i的范围从N扩大到－N；②可以不必给出函数f的具体表达式求解方程，这样便于寻找更多的解。本文就是利用了这一特点，选择合适的参数，得到一些mBBM方程新的精确解。

Those who never have to move house become indiscriminate collectors of what can only be described as clutter.

那些从来不必搬家的人们成了一种无所无容的收藏家。他们专门收藏那些只能被称作杂货的东西。

Indoor climbing is good exercise, and you don't need to worry about the weather.

室内攀岩是一项很好的运动，你不必担心天气。

Aiming at the two propositions (the theorem of three concurrent forces balance and the inertia moment of multimetric polygon), the paper represents and theoretically proves that the condition of three concurrent forces balance should be modified, i.

针对建筑力学中的三力平衡汇交定理和正n边形截面的惯性矩两个命题，提出了应该对三力平衡汇交定理的条件加以修正，即对三力平衡问题中的"三力平行"这种特殊情况不必设条件加以限制，并从理论上加以证明。

Afterwards, we propose a new constant coefficients measurement method in dynamic equation of robot manipulators, this measurement method includes three groups of experiments: group one, let each joint of robot manipulator keep static to measure the constant coefficients in gravity term of dynamic equation and Coulomb frictional torque, group two: let only one joint of robot manipulator move at a constant velocity to measure the viscous frictional coefficient and constant coefficients in effective inertia of dynamic equation, group three: let only one joint of robot manipulator move at constant acceleration at a time to measure constant coefficients in Coriolis and centrifugal term and coupling inertia of dynamic equation.

让操作器单个关节恒速运动，在对驱动系统中传动机构，减速装置和电感系数综合考虑的基础上，这组实验对粘滞摩擦系数及有效惯量中常数系数进行测量。这种测量方法只要求旋转关节的驱动电机施加恒定电压，回转关节驱动电机施加正弦波电压。3。让操作器单个关节恒加速运动，这组实验测量动力学方程中哥氏力、离心力项和耦合惯量项中的常数系数，这种测量方法只要求单个关节匀加速运动，而其它各关节保持静止，这种测量方法虽然要求关节匀加速运动，但不必进行关节角加速度检测，而只需进行关节角位移和角速度检测即可，输入量直接给定为输入电压。

Inertial mass and moment of inertia of inertia are used, but they are different physical quantities, there is no secondary school physical moment of inertia term may be not to mention the difference between the two.

惯性质量和转动惯量都用来表示惯性，但它们是不同的物理量，中学物理不出现转动惯量的名词，可不必提两者的区别。

You don't need to spend a fortune - you can start inexpensively.

你不必花占卜你可以开始更便宜。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。