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1)  semispecies ['semi'spi:ʃi:z]
半种
2)  suction radius
吸种半径
1.
In order to better design and study the air-suction cylinder precision seeder, especially the influence of the suction radius to the air-suction cylinder seeder’s performance, it is theoretically analyzed and deduced, and its mathematical model is found.
为了更好地设计气吸滚筒式精密排种器,研究吸孔的吸种半径对播种性能的影响,对其进行了理论分析和推导。
3)  Half-seeds
半粒种子
1.
In the study,the whole seeds was taken as CK1,the half-seeds without sand cover as CK2 and the other half-seeds vere covered with the 1cm,2cm,3cm and 4cm thick layers of sand,respectively.
为了加快玉米品质育种进程,在作物育种中往往将种子横切为两半,用带胚的半粒种子进行繁殖,不带胚的半粒种子用于品质分析,便于优质品种选育。
4)  Variant [英]['veəriənt]  [美]['vɛrɪənt]
变种半群
1.
α-Congruences on Variants of S(X) (Ⅱ)α-Congruences;
S(X)的变种半群的α同余
2.
Relationship between the congruences on a variant T(X,θ) of an α--semigroup T (X) and the T ̄θ--equivalences on X is discussed and the smallest proper congruence is determined for some variants T(X,θ).
本文讨论了α半群T(X)的变种半群T(X,θ)的同余与集合X上T~θ等价关系之间的联系并确定了某些变种半卒群T(X,θ)上的最小真同余。
5)  half-hybrid
[农]半杂种
6)  halfbred
半交种羊
补充资料:吸积半径
分子式:
CAS号:

性质:表示大星子或行星胎的引力吸积范围,或物质涡旋汇流范围。处于吸积半径的星子迟早将被大的星子或行星胎所吸引堆积。吸积半径大小与行星胎质量半径及星子的相对速度等有关。

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