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- protect plants against frost 保护植物以防霜冻
- It can be used for devising systems to protect against frost damage. 它可用来设计防止霜害的方法。
- A usually bell-shaped cover, used chiefly to protect plants from frost. 吊钟形玻璃罩一种通常呈钟状的罩子，主要用于保护植物避免严寒
- They are doing something to protect the plants against the cold. 他们正在采取措施保护植物不受冻。
- It also protects the plants against disease. 它也能保护植物，防止植物染病。
- The farmers must protect plants from the cold. 农民们必须保护作物不受冻害。
- Fill the cooling system with antifreeze as a protection against frost. 在冷却系统里加防冻剂以防止霜冻。
- It may also provide drainage and give added protection against frost action when necessary. 它具有排水作用，但在需要时也增加保护抗冻作用。
- The public and farmers can make use of the grass temperature information to take necessary precautionary measures against frost damage to vegetation. 现在,市民和农民可因应草面温度的资料作出适当的措施,以减低晚间因霜冻破坏农作物所引致的损失。
- Snowfall helps to protect plants and some wild animals from cold winter weather. 降雪能够保护植物和一些野生动物免受冬天寒冷天气的影响。
- Building designed for the protection of tender or out-of-season plants against excessive cold or heat. 专为保护稚嫩或过季植物而设计的建筑，使室内温度不致过热或过冷。
- Snowfall helps to protect plants and some wild animals from cold, winter weather. 降雪有助于保护植物和一些野生动物免于冬日的严寒。
- Objective To evaluate the repellence of five plants against the female adults of Culex pipiens pallens. 目的了解不同植物对淡色库蚊雌蚊的驱避效果。
- In these plants RVT acts like a natural antibiotic, shielding the plants against pathogens. 在这些植物中，RVT犹如一个自然的抗生素，保护植物免受毒素的侵蚀。
- The use of recombinant PIs and synergistic activation to protect plants has been incorporated in integrated pest management program. 多种蛋白酶抑制剂重组，协同保护植物的方法，己成为害虫综合防治计划的一部分。
- This organization's mission is to protect plant species threatened with extinction. 这个组织的目标是保护有濒临灭绝的植物物种。
- Frost has killed several of our young plants. 寒霜冻死了我们的几株幼苗。
- They are also used commercially as safe food,feed and cosmetic colorants and can be able to protect plants from photooxidative stress as well. 类胡萝卜素是人类饮食结构中不可缺少的重要成分,具有多种重要的保健功能,并且是安全的食品、饲料和化妆品着色剂。
- Our purpose is to offer some references for discovering new medicine and tapping the details of culture medicinal plants against snake ven... 本文旨在为新药的开发和挖掘侗族蛇药文化提供有用的参考资料。
- Young plants are often killed by frost. 植物的幼苗常因严寒而冻死。
