这种植物在温室和苗圃入侵性会变得极强,认为它是一种有害植物。叶片和苞片脱落后,容易生根并产生大量新植株。
In the greenhouse this plant can become very invasive, and nurseries consider it a pest. Leaves and bracts detach and root easily and produce multitudes of new plantlets.
其中包括叶子上载有传感器的植物,能显示出它们何时缺水,还包括一种可以检测到地下水中有害化学物质的植物。
These include plants that have sensors printed onto their leaves to show when they're short of water and a plant that can detect harmful chemicals in groundwater.
它的原理在于:当植物蛋白受体受到有害化学物质的刺激时,叶面外皮会释放出一种萜类化合物用以覆盖叶面,因此植物会改变其颜色。
It works because the receptor proteins in plant DNA respond naturally to threatening stimuli by releasing chemicals called terpenoids to thicken the leaf cuticle, thereby changing its colour.
抗诱变素能抵抗一种被称为植物血凝素的非常有害的蛋白质。
The antimutagens counter the effect of proteins known as lectins, which can be quite damaging.
柠檬香蜂草是一种芬芳的精油,经常用于花园中防御有害物或昆虫,或者用于草本植物杀虫剂。
Lemon balm is a fragrant oil that is often used in warding of pests or insects in the garden or in herbal insect repellents.
从西伯利亚引种到北美的一种粗糙的一年生草本植物;因为其具有高草酸盐,所以对美国西部牧场的牛羊有害。
A coarse annual herb introduced into North America from Siberia; dangerous to sheep and cattle on western rangelands because of its high oxalate content.
这次坠毁将一种有害的落叶剂洒入星球的生态系统中,破坏着当地的植物群。
The crash had spilled a noxious defoliant into the planet's ecology, ravaging the native flora.
和第1项研究一样,该研究发现没有一种植物性药物对记忆有利或有害。
The study, like the main trial, found that none of the botanicals had either a beneficial or a detrimental effect on memory.
综合来看,四种药剂对陆生贝类有害种均有较好的防治效果,其中茶子饼是一种值得推荐使用的植物源农药。
Though oil camellia exhibited lower effective control than other three pesticides, it could be worthy recommended as a botanical pesticide still.
综合来看,四种药剂对陆生贝类有害种均有较好的防治效果,其中茶子饼是一种值得推荐使用的植物源农药。
Though oil camellia exhibited lower effective control than other three pesticides, it could be worthy recommended as a botanical pesticide still.
应用推荐