Rigging parts of a typical triangular sail The upper point is known as the head The halyard is the line which raises the sail The the bottom edge of the sail has two points The tack is the forward one and clew aft
分子尺寸是现代筛网和试剂的供应商,用于X射线结晶学测定蛋白质结构.我们拥有广泛的蛋白质结晶学产品,包括细菌生长介质、可供使用的硒甲基硫蛋白表达介质、结晶屏幕、结晶板和冰晶学。 Molecular Dimensionsis a world leading supplier of modern screens, reagents, other consumables and instrumentation for protein struc...
Wally Funk, one of the original "Mercury 13" female astronaut trainees in the early 1960s will pilot the SOLARIS X in the X PRIZE competition. SOLARIS X is a liquid-propelled, vertical take- off/horizontal landing vehicle that will become the flagship of IOS' future sub-orbital space ...