它向本人们标明本人们每天需求几种食物的数量。
It shows us that we need every day how much food the number of species.
收获项目可能会出现偏差——如果他们过分专注于收集到食物的数量的话。
The harvesting projects can go awry if they focus too heavily on the quantity of food gathered.
史密斯和他的合作者的研究表明：到达深海的食物的数量随着时间发生巨大的变化。
Research by Smith and his coauthors has shown that the amount of food reaching the deep sea varies dramatically over time.
它们不会制造捕食用的陷阱，而且食物的数量也无法满足其需要，因此狮子之间需要竞争。
They do not have the ability to create traps for food, nor is food accessible in an 'on demand' basis. They have to hunt and fight with each other.
制作一个最低要求者的饮食就是削减食物的数量和准备时间，感受不同的食物带来简单的快乐烹饪体验。
Creating a minimalist diet is about paring food quantity and preparation to the essential and experimenting with different types of food to create a simple culinary delight.
本周，意大利政府通过了一项旨在大幅减少该国食物浪费数量的法律。
This week the Italian government passed legislation that aims to dramatically reduce the amount of food wasted in the country.
他们报告说，细菌在五秒之内从地砖转移到了饼干上，但没有报告从地砖成功转移到食物上的细菌的具体数量。
They reported bacteria were transferred from the tiles to the cookies within five seconds, but didn't report the specific amount of bacteria that made it from the tiles to the food.
他们报告说，细菌在五秒钟内从瓷砖转移到饼干上，但没有报告从瓷砖成功转移到食物上的细菌的具体数量。
They reported bacteria were transferred from the tiles to the cookies within five seconds but didn't report the specific amount of bacteria that made it from the tiles to the food.
如何在不增加动物数量、不影响脆弱的土地和我们的资源基础的情况下确保食物供应，这是一项挑战。
The challenge is how to ensure food without increasing animal numbers and having an impact on fragile lands and our resource bases.
鹿和麋鹿的数量迅速增长，它们是狼的主要食物来源。
Deer and elk populations grew rapidly, and they are major food sources for the wolf.
鹿和麋鹿的数量迅速增长，它们是狼的主要食物来源。
Deer and elk populations—major food sources for the wolf—grew rapidly.
食物短缺或过度捕猎都可能威胁到动物的数量。
Either food scarcity or excessive hunting can threaten a population of animals.
土地不断受到人口数量增加所带来的压力，这些增加的人口需要土地提供食物和养料。
Expanding populations are subjecting the land to increasing pressures to provide them with food and fuel.
五分钟后，我们将培根或面包放在表面5秒、30秒或60秒，然后检测转移到食物上的细菌数量。
Five minutes after that, we placed either bacon or bread on the surface for 5, 30 or 60 seconds, and then measured the number of bacteria transferred to the food.
许多人认为，自愿为无家可归者提供食物、衣物并雇用他们减少了贫困者的数量。
Many people feel that volunteering to help feed, cloth, and employ the homeless reduces the population of those in need.
随着野兔密度的增加，这些树枝的数量减少，迫使野兔以低质量的高纤维食物为食。
As hare density increases, the quantity of these twigs decreases, forcing the hares to feed on low-quality high-fiber food.
在其他条件相同的情况下，这意味着他们必须开拓出比农学家更大的土地面积，以获得相同数量的食物、衣服和其他必需品。
All else being equal, this means they must exploit larger areas of land than do agriculturalists to secure the same amount of food, clothing, and other necessities.
较少的猎物数量为捕食者提供了不足的食物，导致捕食者数量减少。
Low prey population levels then provide inadequate food for the predators, causing the predator population to decrease.
随着野兔数量的减少，猞猁数量也会减少，因为它们的食物供应已经耗尽。
As hare numbers fall, so do lynx numbers, as their food supply depleted.
考虑到资源分配的不平等，高原印加人需要获得海拔较低、较温暖的区域的产品，以扩大食物的种类和数量。
Given this unequal resource distribution, highland Incas needed access to the products of lower, warmer climatic zones in order to enlarge the variety and quantity of their foodstuffs.
一项有关电脑键盘上细菌数量的最新研究称，以后捡起落在键盘上的食物碎屑往嘴里塞之前可得想好了。
Think twice before eating those dropped crumbs off your computer keyboard, according to a new study on the amount of germs on keyboards.
如果我们食用正确的食物和正确数量的食物，我们将有足够的能量让我们的身体和大脑正常工作。
If we are eating the correct food and the correct amount of the food, we will have enough energy for our bodies and minds to work properly.
数量不断增长的大象需要更多的空间和食物来生存。
The growing population of elephants need more space and food to live.
你还帮助减少了垃圾的数量，因为你不需要用袋子来装食物。
You also help reduce the amount of rubbish because you don't need to use bags for packing your food.
新西兰作家罗伯特和布伦达·威尔通过研究种植宠物(涉及范围从鹦鹉到猫和狗)食物所需的土地数量，得出这项研究结果。
New Zealand-based authors Robert and Brenda Vale base their findings on the amount of land needed to grow food for pets ranging from budgerigars to cats and dogs.
而且他说，与身体锻炼一样，食物的质量和数量同样重要。
And, along with physical activity, food quality is just as important as quantity, he says.
我们用捐赠进来的食物数量很好的弥补了这个损失。
We well made up for it with the amount of food that came in.
这类鱼经常在逃跑后和当地的鱼群争抢食物，因此导致当地鱼群的数量减少。
Often, the fish escape and compete with native fish for food, leading to declines in native populations.
第20行的目标函数要对食物的总体成本实现最小化，该值是每个决策变量(食物数量)乘以每单位食物成本的结果。
The objective function on line 20 minimizes the total food cost as the total of each decision variable (amount of food) multiplied by that food's cost per unit.
他们还要估计在每种食物的卡路里的数量以及他们愿意为每种产品支付的金额。
They were also asked to estimate the number of calories in each food item and how much they would be willing to pay for each product.
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