在历史上，纺织染料是由植物和动物排泄物等天然资源制成的。
Historically, textile dyes were made from such natural sources as plants and animal excretions.
更有可能的是鸟类运输：或者是通过外部途径，即种籽偶然附着在羽毛上；或者是通过内部途径，即鸟类吞食果实并随后将种籽排泄出来。
More probable is bird transport, either externally, by accidental attachment of the seeds to feathers, or internally, by the swallowing of fruit and subsequent excretion of the seeds.
运动刺激消化和排泄系统。
寄生物传播的方式之一就是透过排泄物。
One of the ways the parasite spreads is through faecal matter.
不是冲洗，而是像真空吸尘器一样吸走宇航员的排泄物。
Instead of flushing, they work like a vacuum cleaner sucking away the astronaut's waste.
当它们返回家园时，它们的排泄物会分散在巢穴周围，包括附近的池塘里。
When they return home, their droppings end up all around their nesting sites, including in nearby ponds.
农民蚂蚁分泌抗生素来控制其他可能充当“杂草”的真菌，并传播排泄物来给作物施肥。
Farmer ants secrete antibiotics to control other fungi that might act as "weeds", and spread waste to fertilise the crop.
与人类活动破坏环境的传统观点相反，格拉泽说：“与人类排泄物结合的黑碳是黑土高地土壤肥沃的原因。”
Contrary to the conventional view that human activities damage the environment, Glaser says, "Black carbon combined with human wastes is responsible for the richness of Terra Preta soils."
由于甲基汞在体内的肠肝循环和肾脏近曲小管对甲基汞的重吸收效率高，使甲基汞的体外排泄十分困难。
The excretion of methyl mercury becomes very difficult because of high enterohepatic circulation and reabsorption by proximal convoluted tubule.
受感染家禽将病毒分泌或排泄到它们的唾液或粪便中。
Infected poultry excrete virus in their secretions and faeces.
他认为厕所将能够检测我们的排泄物以发现疾病的迹象。
Our toilets will check our excretions for telltale signs of disease, he suggests. M.
他认为厕所将能够检测我们的排泄物以发现疾病的迹象。
Our toilets will check our excretions for telltale signs of disease, he suggests. M.R.I.
紫胶虫用粘性排泄物作为停留在它所生存的树上的手段。
The Kerria lacca uses the sticky excretion as a means to stick to the trees on which it lives.
也就是说它们的排泄物里富含各种纤维和营养物。
便溺后、处理婴儿排泄物后、做饭前和吃饭前应立即洗手。
Hands should be washed immediately after defecation, after handling babies' faeces, before preparing food and before eating.
想来猴子是唯一一种会把自己的排泄物扔来扔去的动物吗？
泰国科学家开发出一种将人的排泄物转化成高值燃料的新方法。
A new process which turns human excrement into valuable fuel has been developed by scientists in Thailand.
病毒不能自我复制，也就不会通过呼吸和排泄物传染给其它禽类。
These viruses couldn't replicate and spread to other chickens through the birds' exhalations and droppings.
人类通常通过暴露于受感染的Mastomys鼠的排泄物感染拉沙病毒。
Humans usually become infected with Lassa virus from exposure to excreta of infected Mastomys.
猫携带一种被称作弓浆虫病的疾病，可能因为接触他们的排泄物而感染。
Cats can carry a disease called toxoplasmosis which can be contracted by coming into contact with their waste products.
猫携带一种被称作弓浆虫病的疾病，可能因为接触他们的排泄物而感染。
Cats can carry a disease called toxoplasmosis, which can be contracted by coming into contact with their waste products.
库德拉认为海洋动物排泄的尿素很少，污染问题几乎都是人类造成的。
"Marine animals release small amounts of urea, but the pollution problem is almost entirely human caused," says Kudela.
毛细血管扩张把更多氧气送入肌肉中并带走排泄物，如二氧化碳和乳酸。
Your small blood vessels (capillaries) will widen to deliver more oxygen to your muscles and carry away waste products, such as carbon dioxide and lactic acid.
科学家们在蚊子肾部的导管中发现了一种关键的蛋白，它能帮助蚊子进行必要的排泄。
Scientists have discovered a key protein in the renal tubes of these mosquitoes that helps with the necessary excretion.
科学家们在蚊子肾部的导管中发现了一种关键的蛋白，它能帮助蚊子进行必要的排泄。
Scientists have discovered a key protein in the renal tubes of these mosquitoes that helps with the necessary excretion.
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