必需的

Three proteins in the tumor cells transport enzymes needed to perforate this barrier, and another protein puts these enzymes in the right place.

在肿瘤细胞转运酶中有三种蛋白质是刺穿这种屏障所必需的，另一种蛋白能把这些酶运送到合适的位置。

X 11 All required supports for peripheral equipment set up and fixation.

所有必需的外部设备的支撑，架设和固定

Meaning "readiness." For Pestalozzi, all learning began with sense impression, the use of all the senses.

在他看来，"敏捷"是开始一个新学习阶段时所必需的心理和生理的技能。

Phosphorus is one of the essential nutrients for plant, which plays very important role in agriculture production.

磷是植物生长所必需的营养元素之一，在农业生产中具有不可替代的作用。

Hormone (growth substance; plant hormone; phytohormone) One of a group of essential organic substances produced in plants.

激素（生长物质，植物荷尔蒙、植物生长素）：是植物体产生的一类必需的有机物质。

I think the picture show us how fruit is necessary to life.

我认为这幅画给我们展示了水果对于我们的生活是必需的。

This will help you focus on the positive part of completing your goal and will help you achieve the clarity needed.

这样会帮助你集中精力在实现你目标的积极事件上。同时，也帮助你实现必需的目标清晰性。

The NMDA receptor, on the other hand, responds only to extraordinarily rapid trains of stimuli and is required for long-term potentiation.

NMDA受体则仅仅对特别快速的刺激作反应，是长时程增强所必需的。

But it is not necessary for me to praise my supervisor.

但是它不是必需的让我称赞我的管理者。

We have under arms at the present time in thisisland over 1,250,000 men.Behind these we havethe local defense volunteers,numbering 500,000,only a portion of whom,however,are armed withrifles or other firearms.

因此，现在想侵犯大不列颠，敌军就必须极大规模地越海运输部队，而部队运输之后又必须持续供应持久战所必需的大量军火和给养，因为战争必将是持久的。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。