simple species

Purebreds of “ZND No.

结果表明 :Ea是六个纯种中蜂胶产量最高的蜂种 ,Ea×C是所有纯种和杂交组合中蜂胶产量最高的蜂种 ,是培育蜂胶高产杂交组合的首选蜂种 ,其他 9个杂交组合均未表现出杂种优

It was proved that for v ≥3, there exist two simple DTS ( v,3)s intersecting in s triples if and only if s ∈{6}, for v =3; s ∈{0,1,2,…,12} {1,11} for v =4; s ∈{0,1,2,…, v(v -1)} { v(v- 1)-1}, for all v ≥5.

证明了对于任意正整数ｖ≥３，存在两个ｖ阶单纯三重有向三元系相交于ｓ个公共有向三元组的充要条件是：当ｖ＝３时，ｓ∈｛６｝；当ｖ＝４时，ｓ∈｛０，１，２，…，１２｝＼｛１，１１｝；当ｖ≥５时，ｓ∈｛０，１，２，…，ｖ（ｖ－１）｝＼｛ｖ（ｖ－１）－１｝，从而完全确定了单纯三重有向三元系相交数的

The intersection problem of simple directed triple systems with λ =2 is completely solved, namely, it is proved that for v ≡0,1 (mod 3), v ≥3,there exist two simple DTS( v ,2)s intersecting in s triple if and only if, s∈{0,1,2,…,2v(v-1)/3},s≠[2v(v-1)/3]-1, while v≥4 s∈{0,2,4},while v=

解决了单纯二重有向三元系的相交数问题。

pedigree cattle

血统纯正 [纯种] 的牛

Being authentically or genuinely such by birth.

纯种的出身纯正或血统纯净的

pedigree cattle, dogs, horses, etc

纯种的牛、 狗、 马等.

pure breed multiplication and selection

纯种猪的繁殖与选种

Recorded descent from purebred stock.

良种，有记载的纯种出身

Of mixed breed; not thoroughbred.

劣种的杂交的，非纯种的

pure bovine heifer bred for breeding

小母牛,纯种,供繁殖用

pure-bred cattle for breeding

纯种栏牛,供繁殖用

Identity Enrollment Herdbook

纯种家畜身份登记册

Yes. We had our dog mated with another pure breed.

是纯种的。我们让狗狗和另一只纯种狗交配。

Having only one parent that is purebred;half - blooded.Used of animals.

混血的只有一个亲本是纯种的；半纯种的，用于动物

He's a thoroughbred boxer with an outstanding pedigree.

牠是只纯种拳师狗，有优秀血统。

Of unmixed blood or ancestry.

纯种的具有毫无混杂的血统或祖先的

official record of the pedigree of purebred animals especially horses.

纯种动物特别是马的谱系的官方记录。

This material is warranted pure silk.

这种料子保证是纯丝的.

His pedigree was a little too perfect.

他的品种有点太纯。

It would be downright [sheer] madness to do such a thing.

做这种事纯粹是发疯。

Ignorance is mere privation.

无知是一种纯粹的贫乏。