Factories are no longer allowed to pollute the air with black smoke.不再允许工厂的黑烟污染空气了.These gases pollute the atmosphere of towns and cities.这些气体污染了城镇的空气。Mining would pollute the lake and denude the forest.采矿会污染湖水，毁掉森林。Bicy...
Mining would pollute the lake and denude the forest.采矿会污染湖水，毁掉森林。Factories are no longer allowed to pollute the air with black smoke.不再允许工厂的黑烟污染空气了.She thinks these books pollute the minds of children.她认为这些书腐蚀儿童的心灵....
它具有溶解性好, 在低浓度时具有高黏度的特性.It is characterized by the high solubility, and high stickiness at low temperature.以苹果渣为原料制备较高黏度羧甲基纤维素钠.In the experiment the high viscosity carboxymethyl cellulose sodium was made by apple marc....
Leah had chosen to stay with Nim.莉娅提出要跟尼姆呆在一起.Better Leah and Benjy should know than have It'sprung upon them suddenly in a crisis.还是让莉娅和本杰知道的好,免得事情到了不可挽回的地步突然摆在他们面前.Tonight, Daisy could tell Leah that shes going ba...
In this paper the Ridge - Stein combined estimator ( RSC ) is presented for linear pushbroom imagery exterior orientation.本文提出采用岭压缩组合估计解决线阵列推扫式影像的外定向问题.The linear glucan molecules of cellulose are bound together by hydro...