The difference is mainly in the tone not in the drainage pattern or landform.所不同的主要在色调,而不在于水系型式或地形.These mathematical definitions make basic landform shape concept of limit determine nat.继而给出了如斜坡、山、山脊、凹地、谷地、鞍部等基本地貌形态的数学定...
There has been a concerted campaign against the proposals.人们将采取一致行动反对这些提议.Concerted action alone leads to victory.步调一致才能得胜利.But a concerted effort has begun to improve the quality of the urban air.但是各方已经开始共同努力改善城镇空气质量。...
The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.化合物庚烷的主要用途是作为双基推进剂的增塑剂.However, it is difficult to produce multi branched i heptane and restrain its cracking.正庚烷异构化的难点在于高选择性地...
" No , no , Mr. Wheeler,'said Mr. Oeslogge. " Dat iss all right. "“ 行的, 行的, 惠勒先生, "奥斯拉格先生说, " 这没问题." My! Dat's a mighty gay marvel, I tell you!“ 嘿, 老实说, 那是个挺不错的好玩意." Dat's Mist'Johnnie's privut f...