In the future the machines will need spare parts and maintenance.这些机器将来会需要备件和维修保养。A technician loads a video tape into one of the machines.一名技师把一盒录影带装进其中一台机器。Many of the machines are gathering dust in basements.许多机器尘封在地下...
Objective To synthesize raloxifene hydrochloride, which is a selective estrogen receptor modulator.目的合成选择性雌激素受体调节剂盐酸雷洛昔芬.A laser and electroabsorption modulator ( EAM ) are monolithically integrated through an etched fac...
Their underlying causes and mechanisms are divergent.它们的根本起因和作用是不同的.Almost from its inception it follows a developmental pattern sharply divergent from that of the zygote.它几乎一开始就遵循与合子显然不同的发育模式.Do not trust anybody, all t...