單萜類化合物是植物揮發(fā)油的主要成份.The monoterpenoids are dominant components in the " volatile oils " of plant species.目的: 研究腺點(diǎn)金絲桃揮發(fā)油成分及相對(duì)含量.AIM : To study the constituents of Hypericum Scabraum. its percentage composition.方法: 采用水蒸氣蒸餾法從...
With its own fleet of trucks, the company delivers most orders overnight...這個(gè)公司擁有自己的貨車車隊(duì),大多數(shù)訂購貨品可以隔日送到。Our lumbermen used heavy - duty trucks for transporting logs.我們的伐木工人使用重型卡車運(yùn)送木料.Cars, trucks and buses produce exhaust...
The secret to happiness is to keep setting yourself new challenges.幸福的秘訣就是要不停地給自己設(shè)定新的挑戰(zhàn)。Dara challenges our stereotypical ideas about gender and femininity.達(dá)拉對(duì)我們老一套的性別和女性特質(zhì)觀念提出了異議。Offe also challenges the postulate of an...
Lowered sea levels exposed the shallow continental shelf beneath the Bering Sea.海平面下降使白令海底部的淺層大陸架暴露出來。How do people define the continental shelf?人們?cè)趺创_定陸架的范圍的?The water above the continental shelf is moved by the tides an...
The reformer and ideologist Zheng Guanying was the exponential.鄭觀應(yīng)是這一思想的積極倡導(dǎo)者.The exponential algorithm in terms of Cauchy stresses within the finite deformation elastoplasticity is submitted.本文基于柯西應(yīng)力來表示屈服準(zhǔn)則,給出了以柯西應(yīng)力表示的有...