
adj.無(wú)臟污的;無(wú)污點(diǎn)的
Studies On Soilless Culture of Chrysanthemum. 菊花無(wú)土栽培研究。
Studies on Soilless Substrates Used in Pot Cyclamen Production. 仙客來(lái)盆花溫室規(guī)?;a(chǎn)栽培基質(zhì)篩選的研究。
What are the advantages and disadvantages of soilless culture? 無(wú)土栽培有什么優(yōu)缺點(diǎn)?
Please discuss the advantages and disadvantages of soilless culture? 請(qǐng)結(jié)合實(shí)際談?wù)劅o(wú)土栽培有什么優(yōu)點(diǎn)和缺點(diǎn)。
The people here use soilless cultivation methods to grow vegetables. 人們采用無(wú)土栽培的方法來(lái)種植蔬菜。
The theoretical basis of soilless culture is the theory of mineral nutrition . 無(wú)土栽培是以礦質(zhì)營(yíng)養(yǎng)學(xué)說(shuō)為理論基礎(chǔ)的,該學(xué)說(shuō)的核心內(nèi)容為。