运土卡车和水泥搅拌车都闲置着。
重型运土设备使用时，操作人员只能看到有限的区域，因此，必须指派矿口监工随时警告操作人员在操作位置上无法发现的危险。
It is, therefore, essential that a banksman be appointed to warn the operator of hazards that cannot be seen from the operator's position.
我们有的运土，有的给小树浇水。
Some of us carried earth, and others watered the young trees.
我们有的运土，有的给小树浇水。
Some of us carried earth and some of us watered the young trees.
他们用筐子运土。
运土的卡车正在疏浚狭窄被脏水填满的河，垃圾车一周来三次。
Earth-moving trucks are dredging the narrow, sewage-filled river, and garbage trucks pass through three times a week.
车上积了厚厚的一层土，看上去就像一辆运土车把满满一斗的土卸到了它的身上。
It was covered in so much dirt, it looked like a dump truck had backed up and deposited its payload on the roof.
许多研究者已提出了考虑不同影响因素的模型从理论上或用实验室土柱试验来模拟胶体的运移行为。
The models considering different factors were developed and used to simulate colloidal transport behavior in theory or in laboratory with column experiments.
最后指出人为经济活动影响的重要性，针对土壤水盐运移的规律，提出控制以及改良次生盐渍土的几条措施。
Only if we can understand the rules of water and salt movement in the soil, can we control the secondary salinization, and achieve the sustainable development of this area.
通过室内模拟试验，分析了层状土溶质运移特性，研究了层状土溶质运移参数变化特征。
According to lab simulation experiment, the feature of layered soil solute transport was analyzed, and the changes of solute transport parameter were studied.
自然环境对土遗址的破坏因素包括风、雨、温度、湿度、可溶盐运移等。
The destruction factors of the natural environment included wind, rain, temperature, humidity and other soluble salts transport to the earthen sites.
自然环境对土遗址的破坏因素包括风、雨、温度、湿度、可溶盐运移等。
The destruction factors of the natural environment included wind, rain, temperature, humidity and other soluble salts transport to the earthen sites.
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