 |
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z << >>
| Terms for subject Environment (7358 entries) |
| muscular system (The muscle cells, tissues, and organs that effect movement in all vertebrates) | 肌肉系统 | |
| museum (A place or building where objects of historical, artistic, or scientific interest are exhibited, preserved or studied) | 博物馆 | |
| mushroom (A family of Basidiomycetes that are characterized by the production of spores on gills) | 蘑菇 | |
| music (The artistic organization of sounds or tones that expresses ideas and emotions through the elements of rhythm, melody, harmony and tonal color) | 音乐 | |
| mussel farming (Breeding of mussels for sale as food) | 蚌类养殖 | |
| mustelid (A large, diverse family of low-slung, long-bodied carnivorous mammals including minks, weasels, and badgers; distinguished by having only one molar in each upper jaw, and two at the most in the lower jaw) | 鼬科动物 | |
| mutagen (An agent that raises the frequency of mutation above the spontaneous rate. An agent that causes changes to plants and animals, particularly to their genetic material and especially at the time of reproduction. Certain chemicals and forms of radiation are powerful mutagens that damage the DNA, or genetic material in the centre of every cell of a living organism) | 诱变剂，诱变因素 | |
| mutagenic substance (Agents that induce a permanent change in the genetic material) | 诱变剂 | |
| mutagenicity (The property of chemical or physical agents of inducing changes in genetic material that are transmitted during cell division) | 诱变性 | |
| mutagenicity testing (Testing the property of a substance of being able to induce genetic mutation) | 致突变性试验 | |
| mutant (An individual bearing an allele that has undergone mutation and is expressed in the phenotype) | 突变异种 | |
| mutated micro-organisms release (The release of mutated micro-organisms creates the risk that they may exhibit some previously unknown pathogenicity, might take over from some naturally occurring bacteria (possibly having other positive functions which thus are lost) or pass on some unwanted trait to such indigenous bacteria. There is also concern that an uncontrolled genetic mutation could produce from such an engineered microorganism, a form with hazardous consequences for the environment) | 突变微生物 | |
| mutation (A change in the chemical constitution of the DNA in the chromosomes of an organism: the changes are normally restricted to individual genes, but occasionally involve serious alteration to whole chromosomes. When a mutation occurs in gametes or gametocytes an inherited change may be produced in the characteristics of the organisms that develop from them. Mutation is one of the ways in which genetic variation is produced in organisms. A somatic mutation is one that occurs to a body cell, and is consequently past on to all the cells derived from it by mitosis. Natural mutations, at this stage of biological evolution, when they occur in the cells of higher animals, almost always produce deleterious characteristics. Both natural and artificial mutations can be brought about by ionizing radiation (hence the genetic and carcinogenic dangers of nuclear weapons) and by certain chemical substances called mutagens) | 变异 | |
| mutual response zone | 共同威胁区 | |
| mutual threat zone | 共同威胁区 | |
| mycete (Nucleated usually filamentous, sporebearing organisms devoid of chlorophyll) | 霉菌 | |
| mycology (The branch of botany concerned with the study of fungi) | 真菌学 | |
| mycorrhiza (The symbiotic association of the root of a higher plant with a fungus. In an ectotrophic mycorrhiza (e.g., heath, pine trees) the fungal mycelium covers the outside of the roots; in an endotrophic mycorrhiza (e.g. orchids) the fungus grows inside the cells of the root cortex) | 菌根 | |
| myth (A traditional or legendary story, usually dealing with supernatural beings, ancestors, heroes or events, that is with or without determinable basis of fact or a natural explanation, but is used to explain some practice, rite or phenomenon of nature, or to justify the existence of a social institution) | 神话 | |
| n-ple point | n 重点 |