Sentence examples for control of sand from inspiring English sources

Compared with the railway sand hazards at low-altitude regions, whether the railway sand hazards at high-altitude regions have been aggravated or mitigated, which is not conducive to targeted control of sand hazards, is currently unclear.

Significant reductions in population size and distribution during that time have been attributed to excessive grazing of rangelands, conversion of native rangelands to croplands, drought, and chemical control of sand sagebrush (Artemesia filifolia) and shin-oak (Quercus havardii).

These factors indicate that control of the sand fly vector will remain an important component of leishmaniasis control for the foreseeable future [3].

Canadian Prime Minister Stephen Harper said: "Foreign state control of oil sands development has reached the point at which further such foreign state control would not be of net benefit to Canada.

This process also controls the amount of sand production in oil-producing wells.

The other samples were prepared by controlling the size of sand grains.

Control of the blown sand is important for the highway and oil bases there.

Scent plots were randomly allocated to one of three treatments (n = 10 per treatment): the scents of two mice, the scents of six mice, and a procedural control, comprising 1 L of clean sand, to control for the addition of sand (hereafter 'clean sand').

This paper presents the results of the laboratory development phase of a major project to develop a novel sand control technique that could overcome the technical and economic limitations associated with existing methods of sand control.

The former researches of sand control screen performance are all based on some single units of sand control, for small size of this kind of simulating experiments there is a huge different between lab conditions and real production.

In the design of sand control, the content of clay minerals has important significance for the selection of sand control methods, the hydration swelling of montmorillonite in clay minerals would block the hole of screen easily and reduce the production of oil well in later stage of production.