必不可少

Infrared proposal underwear must be ready, together with a set of thin underwear in case, the high collar of thick cardigan essential, also down jacket, it is possible, down to pants, high-heat tie the shoes must Should, with the conditions of the mountain waterproof shoes, do not forget to buy a few pairs of socks and a good point to his shoes equipped with anti-vice crampon.

建议红外内衣裤一定要准备，在加上套薄的内衣一备万一，高领的厚羊毛衣必不可少，羽绒服也要，可以的话，羽绒裤也要，高绑的保暖鞋一定要，有条件带防水的高山鞋，别忘了买几双好点的袜子和给自己的鞋子配副冰爪防滑。

So it is very essential to study the intensity of the crankshaft in engine design process.

因而曲轴的强度研究是发动机设计必不可少的重要组成部分。

It is an indispensable part of happiness not to get something you crave for.

得不到渴望得到的一些东西是幸福的一个必不可少的组成部分。

But it is rather essential to do if you want to become a creative professional.

但却是必不可少的，而你要想成为一个专业创作。

This is an indispensable part of his creed.

这是他的信条中必不可少的一部分。

Cribbing is essential in many extrication operations.

支架在许多解救被困人员的任务中必不可少。

It is important to provide al minerals necessary for the development of strong crystalline bones.

这是很重要的，要为强壮的水晶骨头生长提供必不可少的所有矿物质。

In fact, you could consider them essential to WNC's culinary landscape.

事实上，你可以考虑他们必不可少的妇女委员会的饮食景观。

Knowing how to eat a girl out and performing proper cunnilingus is essential if you want to please the woman.

知道如何吃一个女孩和表演适当cunnilingus是必不可少的如果你想请该名女子。

As the speed detection control and the accuracy and currentness of the speed detection figures have the direct influences on other various detection and calculation results about the parameter , the system is one of the most important subsystem .

由于速度检测控制的好坏及速度检测值的准确性和实时性直接影响其他各项参数的检测和计算结果，所以该系统是履带式拖拉机综合性能测试系统中必不可少的重要子系统之一，速度检测子系统的研究对于优化履带式拖拉机整机性能设计有着至关重要的作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。