Sentence examples for existed in the environment from inspiring English sources

The element plutonium (Pu) has constantly been generated in nature, and has existed in the environment since the birth of the earth.

Escherichia coli, a kind of gram-negative bacteria that were widely existed in the environment, which have brought serious hazards to the intestinal tract of humans and animals to cause various infections and foodborne diseases such as peritonitis, cholecystitis, cystitis, bloody and non-bloody diarrhea, and so on (Müller et al. 2001).

Many phenomena are existed in the environment in which particle's motion can be observed on them, such as centrifugation, centrifugal filters, industrial hopper, etc. Surface of the motion has different shapes especially for rotating application; it can be a circular, parabolic, or conical surface.

H5N1 Viruses existed in the environment could infect water fowls, which could transmit H5N1 viruses when they are migrating.

The traditional pterosaur diet of piscivory was ruled out due to the structure of the cervical vertebrae and large size of Quetzalcoatlus, and the small size of the streams that would have existed in the environment represented by the Javelina Formation [2].

These may have existed in the environment at the time the code originated if their rates of non-biological synthesis were high enough, or they may have been synthesized by RNA-catalyzed pathways.

These results also implied 3OH-CB3 and 2OH-CB3 should extensively exist in the environment due to the ubiquitous existence of CB3.

"The risk of emergence of a new human pandemic virus will remain as long as the avian influenza virus exists in the environment," the W.H.O. said in a statement, urging that more work be done to create a vaccine.

Therefore, they exist in the environment and possibly accumulated within the human body.

These toxins exist in the environment both naturally and man-made.

In the former case, real and virtual objects individually exist in the environment.