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The instrument adopts the theory of ultrasonic echo for quickly scanning river bed topography under water and employs the principle of resistance for measuring river bed topography upon water and shallow beach topography, which increases the measuring spe
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该仪器采用超声测量原理实现了水下地形的无接触快速扫描测量，采用阻抗原理实现了洲滩、边滩、浅滩的地形测量，有效提高了测量速度，并减小了对河床的扰动影响。 |
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The instrument appointing a proxy shall be deposited at the office not less than forty-eight hours before the time appointed for holding the meeting or adjourned meeting at which the person named in the instrument proposes to vote or, in the case of a pol
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如需委托某位代表代为投票，委托书应最晚在会议召开前48小时递交给基金会办公室，如只需委托代表参加表决会议，委托书应最晚在会议召开前24小时递交给基金会办公室，否则委托不得生效。 |
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The instrument appointing a proxy shall be in writing under the hand of the appointor.
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指定代表需由指定人以书面形式进行委托。 |
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The instrument can automatically accomplish the measurement of 3-D river bed topography, the display of three dimension topography and the drawing of contour map.
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系统能自动完成三维地形测量、断面图形显示、等高图和三维地形图的绘制。 |
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The instrument can be set to give periodical calibration requests and the results are stored in the instrument (ISO requirement).
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仪器可设置为周期校准请求，校准结果都被储存在仪器中（ISO要求）。 |
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The instrument can easily and correctly location,depth of the underground pipes and the exact position of leak points on the insulating anticorrosive coating without digging ground.
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本仪器不挖开复土的情况下，方便而准确地查出地下管道的走向、深度和绝缘防腐层的漏蚀点的精确位置，使整个管道表面不再屡遭到处开搪破土之苦。 |
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The instrument directs the secondary ions to a mass spectrometer that identifies their compositions.
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仪器会将次级离子导向质谱仪，以鑑定其组成。 |
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The instrument had been applied in professional experiments in metallurgy industry, and satisfactory effect is gained.
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该仪器已经在冶金专业实验中使用并取得了满意的效果。 |
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The instrument has proved most useful.
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这种仪器证明很有用。 |
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The instrument is characterized by it compactness and portability.
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这台仪器的特点是结构精巧，携带方便。 |
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The instrument must be accompanied by instructions manual with the necessary schematics and drawings.
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有使用说明书和必要的电路图和原理图。 |
