机械类名词,求解释

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  机械类名词,求解释

这是很专业的东西,并且跨行业很难解释,您是否有相应的语境,大概可以分析出来,
比如:
tip wear 可以理解为二氧化碳焊枪的焊针磨损,tip dressing 可以理解为焊针的修磨。等等

垄作名词解释

在高于地面的土埨上栽种作物的耕作方式。
中国华北、东北和内蒙古等地多用于栽培玉米、高粱、甜菜等旱地作物,其他地区主要用于栽培甘薯、马铃薯等薯芋类作物。

名词解释,用英语 evolution Shelford's low of tolerance soil drought allelopathy

翻译如下,供你参考:
1.进化evolution(noun):(biology) a gradual change in the characteristics of a population of animals or plants over successive generations: accounts for the origin of existing species from ancestors unlike theme.
2.Shelford耐受性定律:
美国生态学家谢尔福德(V.E.Shelford)于1931年提出:任何一个生态因子在数量上或质量上不足或过多,即当其接近或达到某种生物的耐受限度时,这种生物就会衰退或无法生存。
Any ecological factors insufficient or excessive in terms of quantity or quality, the organism will be in recession or can't survive, when it comes to or reaches a biological tolerance limit.
3.土壤干旱soil drought:
土壤水分不能满足植物根系吸收和正常蒸腾所需而造成的干旱。
Soil moisture can not meet the need of normal transpiration and absorption by plant roots and then cause drought.
4.化感效应:
Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the growth, survival, and reproduction of other organisms.

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