The developable iodic polymer and the embolic material thereof have the advantages of nontoxicity, inadhesion, easy operation, high safety and effectiveness, and the function of development.
本发明的可显影含碘聚合物和可显影含碘聚合物栓塞材料,具有无毒性、不粘附、易操作、安全、有效,具有显影功能。
The function of forest floor on water conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.
探讨了森林地层在水土保持、养分供应、促进生物呼吸强度和土壤发育等方面的作用。
A completely different theory holds that yawning assists in the physical development of the lungs early in life, but has no remaining biological function in adults.
另一种完全不同的理论认为,打呵欠有助于生命早期肺部的生理发育,但对成年人没有任何剩余的生理功能。
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