防护物
1.A metal shield worn by sailmakers over the palm of the hand and used to force a needle through heavy canvas.
2."Highway facilities" mean drainage facilities; protection installations; crossroads; boundary markers; survey stakes; safety, communications, checking, supervision, control, maintenance, and service facilities; flower beds; lawns; trees; and special-purpose buildings.
3.The results show that clay and silt contents in surface soil increase greatly and mean grain-size decreases from moving sand area to the artificial vegetational belt due to the changes of the surface properties,and sorting becomes poor. It seems that silt contents decrease with relative height of surface in the shelterbelt;
4.Meanwhile, the applications of NADPH oxidase inhibitor and ROS scavengers showed that NADPH oxidase is required for ABA-induced H_2O_2 accumulation, and H_2O_2 involves ABA-induced the increase in the activities of the chloroplastic and cytosolic antioxidant enzymes, such as superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione reductase (GR).
5.This can be accomplished by using toe boards, screens or brick guards; guard rails systems, nets, catch platforms, or canopy structure methods.
6.Natural biological extracts, free of chemical cleaning ingredients; intended for direct eye contact, harmless to human and objects; bactericidal; forming a protective film after cleaning, making convenience for secondary cleaning, clean and protective; waterless cleaning, clean and simple; avoiding harms and corrosions of chemical cleaning.
7.ANS. Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities. ANSI/HPS N13.1-1999,1999.
8.The project mainly solved the problems from the flood control, the morphological diversity of river profile and cross section, and the diversity of habitats in the river through the layout of shoreline and structures, the design of river profile and cross section, the design of riverbank protection, which is one effective engineering practice of Eco-Hydraulic Engineering.
9.The paper reports concisely the technology development of pretreatment and subsequence treatment of acidic water stripping installation now, the technology of pretreatment of acidic water include: remove waste gas, waste oil, suspending solid, effluvium and safety measure taken, the technology of subsequence treatment of acidic water include: the technology of return use of srripped water and the technology of SBR and the technology of ion exchange of denitrification, especially the proprietary technology of FRIPP in the field.
