例句與造句

1. In addition, in each example the restriction maps are homomorphisms of the corresponding algebraic structure.
2. This method requires that restriction maps of the cloning vector and the insert are already available.
3. where } } is an open cover of, denotes the restriction map, and is the difference.
4. The sections of \ underline S on a connected open equal " S " and restriction maps are the identities.
5. Notice that as a consequence of the local identity axiom for the empty set, all the restriction maps involving the empty set are boring.
6. It's difficult to find restriction maps in a sentence. 用restriction maps造句挺難的
7. For example, would it be correct to say the restriction map N \ to f ( N ) is induced by " f "?
8. Each of the examples above defines a presheaf by taking the restriction maps to be the usual restriction of functions, vector fields and sections of a vector bundle.
9. where the dimension preserving maps are restriction maps induced from inclusions, and the ( co-) boundary maps are defined in a similar fashion to the homological version.
10. A "'restriction map "'is a map of known restriction sites within a sequence of DNA . Restriction mapping requires the use of restriction enzymes.
11. One approach in constructing a restriction map of a DNA molecule is to sequence the whole molecule and to run the sequence through a computer program that will find the recognition sites that are present for every restriction enzyme known.
12. Using analytic continuation, we find that the germ at a point determines the function on any connected open set where the function can be everywhere defined . ( This does not imply that all the restriction maps of this sheaf are injective !)
13. A presheaf on " X " chooses a set for each of the four open sets of " X " and a restriction map for each of the nine inclusions ( five non-trivial inclusions and four trivial ones ).
14. In molecular biology, restriction maps are used as a reference to engineer plasmids or other relatively short pieces of DNA, and sometimes for longer genomic DNA . There are other ways of mapping features on DNA for longer length DNA molecules, such as mapping by transduction.
15. The "'constant presheaf "'with value "'Z "', which we will denote " F ", is the presheaf which chooses all four sets to be "'Z "', the integers, and all restriction maps to be the identity . " F " is a functor, hence a presheaf, because it is constant . " F " satisfies the gluing axiom, but it is not a sheaf because it fails the local identity axiom on the empty set.