专业术语—口腔生理学术语P4(英文详解)
Polymers-large molecules 2 made up of many joined units of a more simple molecule 1. Examples are polysaccharides and polypeptides.
Polypeptides; -chains of amino acids joined by peptide bonds. They are not the size of proteins, but may be biologically very active. Some hormones 3 are peptides, such as insulin which has 51 amino-acid residues 4. Peptides may also be powerful neurotransmitter substances.
Polyphyodont - continuous replacement 5 of teeth with many generations (from "poly" =many; "phylo" = generation and "dont" =teeth). See also diphyodont
Polysaccharides - long molecules made of chains of sugars linked together. Examples are starch 6, glycogen and dextrans.
Predentine - the extracellular matrix produced by odontoblasts, which becomes mineralised to form dentine. Similar in structure to osteoid.
Procaryote - a cell in which the genetic 7 material is dispersed 8 throughout the cell in distinction to a eucaryote which has a nucleus 9 and other organelles. Bacteria and blue-green algae 10 are procaryotes
Prognathic- a prominent lower jaw 11 which may bring the lower teeth ahead of the upper teeth
Proline- one of 20 amino acids common in proteins. It is a common amino acid of collagen and like lycine must be hydroxylated by ascorbic acid in order to allow the formation of hydrogen bonds which will hold the triple helix together.
Proline-rich proteins - a group of proteins in saliva 12 which have the ability to bind 13 to calcium 14. They provide the protective layer of pellicle on the tooth surfaces by binding 15 to the calcium in enamel 16. They also bind onto microorganism, providing a link between organism and the tooth surface. Proline rich proteins help to de-toxify tanins, which are potentially poisonous plant substances found in tea, and unripe 17 fruit.
- A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.一个水分子是由P妈̬f婘̬ 妈̬成的。
- This gives us the structural formula of the molecule.这种方式给出了分子的结构式。
- The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
- Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。
- pesticide residues in fruit and vegetables 残留在水果和蔬菜中的杀虫剂
- All organic and metallic residues on the wafers must be removed. 片子上所有的有机和金属残留物均必须清除。 来自辞典例句
- We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
- They put all the students through the replacement examination.他们让所有的学生参加分班考试。
- Corn starch is used as a thickener in stews.玉米淀粉在炖煮菜肴中被用作增稠剂。
- I think there's too much starch in their diet.我看是他们的饮食里淀粉太多了。
- It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
- Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
- The clouds dispersed themselves. 云散了。
- After school the children dispersed to their homes. 放学后，孩子们四散回家了。
- These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。
- These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。
- Most algae live in water.多数藻类生长在水中。
- Algae grow and spread quickly in the lake.湖中水藻滋蔓。
- He delivered a right hook to his opponent's jaw.他给了对方下巴一记右钩拳。
- A strong square jaw is a sign of firm character.强健的方下巴是刚毅性格的标志。
- He wiped a dribble of saliva from his chin.他擦掉了下巴上的几滴口水。
- Saliva dribbled from the baby's mouth.唾液从婴儿的嘴里流了出来。
- I will let the waiter bind up the parcel for you.我让服务生帮你把包裹包起来。
- He wants a shirt that does not bind him.他要一件不使他觉得过紧的衬衫。
- We need calcium to make bones.我们需要钙来壮骨。
- Calcium is found most abundantly in milk.奶含钙最丰富。
- The contract was not signed and has no binding force. 合同没有签署因而没有约束力。
- Both sides have agreed that the arbitration will be binding. 双方都赞同仲裁具有约束力。
- I chipped the enamel on my front tooth when I fell over.我跌倒时门牙的珐琅质碰碎了。
- He collected coloured enamel bowls from Yugoslavia.他藏有来自南斯拉夫的彩色搪瓷碗。