selective breeding什么意思（broodstock是什么意思）

本文目录

• broodstock是什么意思
• 什么是Selective
• breeding是什么意思
• selectively是什么意思
• selective breeding是什么意思

broodstock是什么意思

In aquaculture, the broodstock is a group of sexually mature individuals of a cultured species that is kept separate for breeding purposes. 在水产养殖业里，B~ 是指为了饲养的目的，被分隔开来的一群性发育成熟的饲养品种个体。 Broodstocks are maintained for several reasons: Providing eggs and fry in a controlled environment so as not to have to rely on wild catches of fry for raising a generation of the cultured species. Producing a disease-free base from which to raise future generations. Selective breeding, trying to produce a breed that is resistant against diseases that can affect wild animals. Broodstocks are common in the farming of salmon and shrimps.

什么是Selective

selective是一个英语单词，可以用作形容词，可以翻译为精心选择的、选择的，等等。
例句：
1、There is potential for selective breeding for better yields.
选种培育以提高产量会大有可为。
2.Sales still happen, but buyers are more selective.
销量仍在，但购买者更加挑剔。
3.Memory is selective and fallible.
记忆有选择性而且会出错。

breeding是什么意思

breeding是繁殖、育种、繁育的意思。

n.交配；生育；生殖；繁殖；育种；繁育；教养。

网络释义：繁殖；育种；选育；滋生；增殖；生育。

短语搭配：

breeding ground；

繁殖地；产卵地；发源地；滋生地；中心；

line breeding；

品系繁育；系统育种；

breeding program；

育种计划；繁殖计划；饲养计划；

breeding stock；

种畜；培育牲畜；良种畜；

breeding practices；

育种实践；繁育实践。

双语例句：

The flooding of the rivers is a trigger for breeding to start.

河流泛滥会引发动物生育繁殖。

Individuals pair later in the season for breeding in the following year.

单居动物会在季节的晚些时候寻偶以便在来年繁殖下一代。

The mini-cow is the result of generations of selective breeding.

微型奶牛是几代选择繁育的结果。

He carries the patina of old money and good breeding.

他带着一副有祖传家产和颇有教养的神态。

The situation is a breeding ground for political unrest.

这种局势是政治动荡的温床。

selectively是什么意思

adv. 不普遍地 ;
基础释义 权威词典 专业释义 例句用法 音节划分：selectiveselectively生词本 中频词，你记住了吗？英
adv. 不普遍地
网 络
选择性地； 选择地； 有选择地
柯林斯高阶英汉双解学习词典
1. ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词选择性的;有选择的;选取少量的 A selective process applies only to a few things or people. 【搭配模式】：ADJ nSelective breeding may result in a greyhound running faster and seeing better than a wolf. 选择性交配繁殖有可能培育出比狼速度更快、视力更佳的灵犭是。
...selective education. 尖子生教育
selectively
Within the project, trees are selectively cut on a 25-year rotation. 按照这个计划，将以 25 年为一个轮伐期对树木进行有选择的砍伐。
selectivity
The soldiers specialized in going out in small groups, to kill with a very high degree of selectivity. 这些士兵擅长小股出动，执行具有高度选择性的歼敌任务。
2. ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词仔细挑选的;严格筛选的 When someone is selective, they choose things carefully, for example the things that they buy or do. 【搭配模式】：usu v-link ADJSales still happen, but buyers are more selective... 销量仍在，但购买者更加挑剔。
If public figures seek publicity to further their careers, they can’t be selective about it. 如果公众人物想通过吸引公众的关注来推进事业，他们可能会不加选择。
selectively
...people on small incomes who wanted to shop selectively. 购物时想要货比三家的低收入人群
3. ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词(记忆)选择性的，只记一部分的 If you say that someone has a selective memory, you disapprove of the fact that they remember certain facts about something and deliberately forget others, often because it is convenient for them to do so. 【搭配模式】：usu ADJ n
【语用信息】：disapprovalWe seem to have a selective memory for the best bits of the past... 我们似乎只记得过去最美好的时光。
Mr Robins, suffering from selective amnesia about his role in the affair, was contradicted in nearly every instance by other witnesses. 对于自己在该事件中所扮演的角色，罗宾斯先生患上了选择性失忆症，因此几乎在每次庭审中都会受到其他证人的反驳。
selectively
...a tendency to selectively forget all the adverse effects of the drug. 有刻意忘掉毒品所有负面影响的倾向英英释义 网络释义
Adverb
1. in a selective manner;
"we choose our students very selectively"
synonym： by selection 双语例句
1. To selectively position the access mechanism of a direct access device. 对直接存取设备的读写机构进行有选择地定位.
来自辞典例句
2. The reactions are selectively compatible with such diverse slurry additives as alcohols, glycols, glycerol, urea, formamide. 与醇类, 二醇类, 丙三醇, 尿素, 甲酰胺各种浆液附加物进行反应时,在相言性方面是有选择性的.
来自辞典例句
3. This would have undermined our deliberate strategy of using trade selectively to encourage political autonomy. 这就会败坏我们有选择地利用贸易来鼓励政治自治的深思熟虑的战略.
来自辞典例句
4. Many microorganisms synthesize and excrete compounds which are selectively toxic to other microorganisms. 许多微生物能合成并分泌一些对其它微生物具选择性毒力的化合物.
来自辞典例句
5. Some prefer to read selectively rather than read extensively. 一些喜欢阅读,而不是有选择性地阅读广泛.
来自互联网
6. Short - chain acids in milk fat are selectively associated with the sn - 3 position. 乳脂肪中 短链 脂肪酸有选择地连接在sn -3 位.
来自互联网
7. The living cells ( cell membranes ) of potato is selectively permeable. 因活的马铃薯细胞 ( 细胞膜 ) 是选透性的.
来自互联网
8. Adriamycin can selectively kill perikaryon by way of retrograde axoplasmic transport. 阿霉素(多柔比星)可以通过逆向轴浆运输选择性杀死神经元胞体.
来自互联网
9. Beijing TV station has begin to offer selectively some foreign programs. 2北京电视台已经开始有选择地提供一些国外的节目.
来自互联网
10. One is never selectively insane. Misperception colors all of one’s experience. 没有所谓部分性的疯狂这一回事,妄见会蒙蔽一个人所有的经验.
来自互联网
11. An INS that enforces its mandates selectively serves business purposes well. 按公司意愿行事的移民归化局有意选择对公司经营有利的解决方法.
来自互联网
12. Although such information leaks out, it does so selectively and unevenly. 虽然这些信息会泄露出来, 但通常是有选择性和倾向性的.
来自互联网
13. The cadmium sulfate is selectively dissolved in alcohol solution. 特别选用乙醇溶液浸取硫酸镉,降低了氧化镉的干扰.
来自互联网
14. Their characteristic is that they can isolate layers selectively. 使用双封隔器选择性封隔地层是这两种仪器的特色.
来自互联网
15. The company would be able to dismiss workers selectively. 公司将可以选择性的解雇员工.
来自互联网
16. Custom Setup allows you to selectively install program features. 自定义安装可以使您有选择地安装程序功能.
来自互联网
17. Objective Selectively treat the lumbago and leg pain. 目的选择性地对腰腿痛治疗.
来自互联网
18. Singapore must continue to selectively develop certain technologies. 新加坡必须继续有选择地发展一些科技项目.
来自互联网
19. We should attend the selectively. 我们要有选择地参加.
来自互联网
20. Adrenergic inhibitors selectively reduce sympathetic tone. 肾上腺素抑制剂有选择地降低交感神经的紧张度.
（金山词霸

selective breeding是什么意思

selective breedingThe conservation research of plant germplasm resources has the extremely vital significance for the biology multiplicity protection and selective breeding of the new variety.植物种质资源的保存研究对于生物多样性保护和新品种选育均具有十分重要的意义。