必需

We must awaken people to the importance of environmental protection, or we will be punished.

我们必需唤醒人们认识到环境保护的重要性，否则我们就会受到惩罚。

Morphological and anatomical studies revealed that there are no axillary meristem and tiller bud in the leaf axil of moc1 mutant plants. Therefore, we predict that MOC1 gene is required for axillary meristem initiation and tiller bud formation.

组织解剖学的观察表明，在moc1突变体的叶腋里没有腋生分生组织和分蘖芽，因此推测MOC1基因是腋生分生组织的起始和分蘖芽的形成所必需的。

Expansionstring.tbl a5q1initlarzuk 45 if you're here to defeat baal, you must prove it!

如果你是来这边打倒巴尔的话。。。。你必需证明这点！

It is essential for lowering back pressure of steam turbine and improving recurrent thermal efficiency of the power plant.

这是降低汽轮机的背压、提高电厂循环热效率所必需的。

The method comprises the following steps: according to the raw water quality, the change of the number of bacteria inside the sedimentation tank and the water quality of the backflush yielding water, the backflush yielding water in the sedimentation tank is collected and deposited in a backflush phase of a working period; supernatant fluid containing mass active bacteria and soluble nutrient elements reflow to the sedimentation tank; total or partial sediment containing soluble nutrient elements in an underlayer reflow to the sedimentation tank and is reutilized by mass microorganisms in the sedimentation tank, thereby replenishing the nutrient substrate needed for microorganism growth, proliferation and metabolism under the condition of the low nutrition substrate, and maintaining the ecological stability in the sedimentation tank.

该方法根据原水水质和生物滤池内部细菌数量的变化以及反冲洗出水的水质，将生物滤池工作周期中反冲洗阶段的反冲洗出水收集并沉淀，将其含有大量活性细菌和溶解性营养元素的上清液回流至生物滤池，下层含有不溶性营养物质的沉淀全部或部分回流至生物滤池，被生物滤池当中的大量存在的微生物重新利用，从而补充在低营养基质条件下，微生物生长、增殖和新陈代谢所必需的营养基质，维持生物滤池当中的生态稳定。

Optical properties of the atmosphere including sky background radiation and surface reflectance are basic physical quantities for atmospheric radiative transfer, light propagation research, and can also find important application in remote sensing, adaptive optics, free-space optical communication, etc.

大气光学特性（包括地表的光学特性和天空背景辐射特性）是光波在大气中传播和大气辐射传输研究必需的基础物理性质，在气象、气候和天文观测等基础和应用研究以及自适应光学技术、自由空间光通讯等光电工程应用中具有十分重要的作用。

As i like most of backpacker in here i am just like an orphan. I need to look after everythings by myself.

我就像一般的背包客一样自己必需照料自己的一切，一个人像个孤儿似的在这。

While they enjoy the comfort and banal luxury of their dwelling, they do not realize that they are deprived of the necessities of life.

在享受自己住宅的舒适和庸俗的豪华时，却没有意识到被剥夺了生活所必需的东西。

I wish to teach, or rather, to inspire the bandsman by this score about my attitude, and method, as well as all necessary skills in creating it. They should then try to forget all the monotone and sweet notes on the score, and on the basis of the remaining images in their mind, to consummate in cooperation with other bandsmen this music work that requires imaginative recreation.

我希望教会，或者说让乐手通过这些音符熟悉我这次创作上的态度、方式，以及种种必需掌握的技巧内容；随后他们应当尽量忘记乐谱上面的所有单调而甜美的记谱，用残留的意象来同其他乐手合作完成这部需要填充的作品。

Barley is the main stuff of beer brewing and chromium is a vital trace element to human. Potassium chromium sulfate was added to the water during the barley infusion and enriched-Cr malt was executed.

啤酒酿造的主要原料是大麦，铬是人体必需的一种微量元素，本文在浸麦过程中用KCr(SO_4)_2处理麦芽，制成了富铬麦芽，研究了铬对麦芽生理生化特性及成品麦芽质量的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。