Another method for moving lumber to market was via crude railroads constructed from the very lumber they were designed to transport.
另一个移动木材的方法是通过简陋的轨道,而这种轨道就是由它们所运送的木头打造而成。
但是这样方法是粗糙的。
Method: Comparing the contents of many kinds of anthraquinones in the crude drug, decoction and drug sediments of Radix et Rhizoma Rhei by HPLC.
方法:采用HPLC法对大黄煎煮前后生药、煎液及药渣中的各种蒽醌的含量进行监测。
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