各家经营各自的农场,收获各自的劳动成果。Each family farms individually and reaps the benefit of its labor.将已收获过的黄瓜、西红柿和其他作物的秧蔓割下,制成堆肥。Cut down and compost spent cucumbers, tomatoes and other crops.他把先前检查过的那些口袋又查了一遍,毫无收获。Uselessly, he checke...
Microspheric trans aconitic acid imprinted polymers were synthesized via a precipitation polymerization with acetonitrile as solvent.以乙腈为分散剂,采用沉淀聚合法合成了反乌头酸分子印迹聚合物微球.Precipitating electrode plate is a key part in electros...