Abstract: An in vitro rescue method for immature embryo of avocado includes: collecting immature avocado hybrid fruits, stripping immature zygotic embryos from the sterilized fruits; inducing maturation of zygotic embryos in different media selected according to the maturities of zygotic embryos; and avocado seed embryos growing to normal plants under light conditions after germination. Provided is a technology for the in vitro culture rescue of immature embryo of avocado, wherein the zygotic embryos at different developmental stages are induced to maturation under in vitro conditions, and after maturation, the seed embryos are induced to germinate and form healthy plants. The present invention can effectively improve the survival rate of hybrid avocado zygotic embryo, increase the success rate of hybrid avocado, rescue the hybrid offspring, reduce the loss of hybrid offspring, ensure the genetic integrity of hybrid group, and provide the key technology for hybrid breeding and genetic research of avocado.

Abstract: Provided is an in vitro rescue method for immature embryo of avocado, and the method includes: collecting immature avocado hybrid fruits, stripping immature zygotic embryos from the sterilized fruits; inducing maturation of zygotic embryos in different mediums selected according to the maturities of zygotic embryos; and avocado seed embryos growing to normal plants under light conditions after germination. Provided is a technology for the in vitro culture rescue of immature embryo of avocado, wherein the zygotic embryos at different developmental stages are induced to maturation under in vitro conditions, and after maturation, the seed embryos are induced to germinate and form healthy plants.

Abstract: A target file is run in an installation package. A secure dynamic library is loaded in the installation package. Based on a code in the target file, digital watermark information embedded in the target file and verification information stored in the secure dynamic library is retrieved. Based on the digital watermark information and the verification information, a determination is made whether the installation package is a repackaged installation package.

Abstract: A target file is run in an installation package. A secure dynamic library is loaded in the installation package. Based on a code in the target file, digital watermark information embedded in the target file and verification information stored in the secure dynamic library is retrieved. Based on the digital watermark information and the verification information, a determination is made whether the installation package is a repackaged installation package.

Abstract: The disclosure provides a production method and production line for pre-printed surface paper corrugated boards, and the production method and production line provided by the invention can be used for solving the problem that the existing corrugated board production line and process cannot adapt to the production of pre-printed colorful corrugated boards. In the disclosure, because the bonding mode that surface paper is arranged on a single-face corrugated board is adopted, the direct contact between color-printed paper and a high temperature heating plate of a drying part can be avoided, thereby effectively preventing the damages on the materials, patterns, gloss oil and plastic films of the color-printing paper. The disclosed corrugated board production method and corrugated board production line can effectively adapt to the application requirements of pre-printed colorful paper on the premise of not increasing the cost.