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- The morphology,species frequency,spore density and natural infection rate of the VAM fungi in tea gardens were studied in the southern parts of Henan province. 对豫南茶园VA菌根真菌形态、种类、种群频度、孢子密度及自然侵染率进行观察与测定。
- The morphology, species frequency, spore density and natural infection rate of the VAM fungi in tea gardens were studied in the southern parts of Henan province. 对豫南茶园VA菌根真菌形态、种类、种群频度、孢子密度及自然侵染率进行观察与测定。
- There may be zones with different frequencies of the microniches, leading to a zonation in distribution of the species or to trends in species frequencies. 还可能存在着微生境频率不同的带,导致了该数种分布的成带现象,或导致了该树种在频率上的各种趋势。
- Do wolves belong to the canine species? 狼是犬科动物吗？
- We should do our best to save endangered species. 我们应该竭尽全力挽救濒于灭绝的生物。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- There are many species of chrysanthemum. 菊花品种很多。
- Today the survival of our species is threatened. 今天人类的生存受到了威胁。
- The giant panda has become an endangered species. 大熊猫已成了一种濒临灭绝的动物。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- Unlike most other bats, this species is diurnal. 这种蝙蝠与大多数蝙蝠不同，是在日间活动的。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- This species of flower flourishes in a warm climate. 这种花在温暖的气候中长得茂盛。
- An endangered species; an endangered culture. 濒临绝种的生物种类; 濒临绝传的文化
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- This species of butterfly is widely distributed over our country. 这种蝴蝶在我国分布很广。
