One of these had a particular three-part or ternary pattern attributed to J. S. Bach’s son, Carl Philipp Emanuel Bach (1714–1788), which is now called sonata form.
And, this involves the reaction of titanium tetrachloride with magnesium to form magnesium chloride plus titanium And, this was invented in 1937 by W. J. Kroll.
四氯化钛和镁,反应生成氯化镁和钛,1937年W。J。克劳尔发明了这个方法。
3
The general form of J-integral conservation law in three dimensions has been derived from the principle of virtual work.