必需的

And although pricey, they are when sliding with less friction is desired.

尽管非常昂贵，但在低摩擦滑行时却是必需的。

That he needs to do space walk activities.

这是他进行太空行走所必需的。

This file is required for PS1.1 specular normal map shaders.

此文件是所必需的PS1.1镜面正常地图着色。

In addition, we also added Spirulina and other essential trace elements.

另外我们还添加了螺旋藻等人体必需的微量元素。

To fill this need, the statement of cash flows(also called the cash flow statement) is required.

为了弥补这方面的需求，现金流量报表是必需的。

Membership in the EHR Steering Committee, and provided that the agreement to grant

技术规范中为了向前兼容该技术规范草案所必需的部分。

The kit should contain necessary medicine, sun cream, insect spray and some band-aid.

该工具包应包含必需的药品，防晒油，驱蚊喷雾和一些权宜之计。

It s a good practice to use superuser privileges only when absolutely necessary .

它是一个好实践使用超级使用者特权只有当完全必需的时候。

Water is one of the materials required to sustain life .

水是维持生命所必需的物质之一。

Since it is an inverse problem, numerical techniques, such as discretization of the integral into a system of linear equations, are necessary.

由于这是一个反问题，一些数字技术比如将积分离散化为一个线性方程组是必需的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。