trophic level

营养层次，摄食层次，营养水平

[生态]营养级；食性层次

graphic novel───漫画(艺术)小说，连环画小说

logic level───[电子]逻辑电平；[计]逻辑级

ground level───地平面，地水准平面；地面标高

logic levels───逻辑电平（logiclevel的复数）

oil level───[车辆]油位，[机]油面

to level───至水平

top-level───最高级的

trophically───营养的

trophy wives───花瓶妻子（以青春和美貌为本钱的妻子）

These microscopic organisms are assigned a trophic level ( TL ) of 1.───这些微生物的营养级为1.

The percentage of usable chemical energy transferred as biomass from one trophic level to the next is called ecological efficiency .───当生物量从一个营养水准到下一个叫做生态的效率时，可使用化学的能源的百分比转移。

A photosynthetic green plant or chemosynthetic bacterium, constituting the first trophic level in a food chain; an autotrophic organism.───生产者，自养有机体构成食物链上的第一级营养层次的可进行光合作用的绿色植物或化能合成的细菌；

ecological efficiency The efficiency of transfer of energy from one trophic level to the next.───生态效率从一营养阶层到下一阶层的能量传递效率。

The next best way to quantify the amount of protoplasm in each trophic level is to weigh it.───确定每一个营养阶层原生质总量的第二个好办法是称重。

The first and lowest trophic level contains the producer, green plants that convert solar energy to food by photosynthesis.───第一层或称最底层营养水平包括生产者——通过光合作用将光能转化成为化学养料的绿色植物。

Herbivores occupy the second trophic level and are primary consumers: they eat the members of the first trophic level.───第二营养水平为草食动物，或称初级消费者，它们以第一营养水平的成员为食。

According to the comprehensive trophic level index (TLI), the values of Tangxi reservoir were between 30 and 50. It showed that the reservoir was mesotrophic.

These microscopic organisms are assigned a trophic level ( TL ) of 1.

Producer The first TROPHIC LEVEL , in a food chain.

A photosynthetic green plant or chemosynthetic bacterium, constituting the first trophic level in a food chain; an autotrophic organism.