By the 1930s the wristwatch had almost completely supplanted the pocket watch.到了 20 世纪 30 年代，手表几乎完全取代了怀表。He glanced at his wristwatch. 'I suppose we'd better make a move.'他看一眼手表说：“我想我们最好动身吧。”He has a very ...
He would attach a cable around the chassis of the car and winch it up on to the canal bank.他会把钢丝绳拴在汽车底盘上，用卷扬机把汽车吊到运河岸上。The frame or chassis on which panels of electrical equipment may be mounted.可安装电气设备板的框架或底座.The stabil...
Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.The purified rice amylose and amylopectins were obtained by n - butanol recrystallization meth...
stellar photometry星体光度学This formation, called an accretion disk, may be very important in some stellar birth sequences.这种构成物即所谓吸积盘, 它在恒星诞生的某些阶段可能是非常重要的.If the stellar spectrum is known, the albedo of the dust can be obta...
He wanted to amortize his fixed rental cost by stretching the operating hours.他想用延长营业时间来分摊固定的租金。Amortize bond discount and premium by the effective - interest method.用实际利率法摊销债券的折价和溢价.I intend to amortize the total cost o...