3087. To make something visible by an external source such as light

A. Those units and components are used to induce and convert fuel-air mixture into power.

B. The function of those assemblies and units are to suction-defuel and send the fuel-air mixture into the power plant.

C. The function of those units and components are designed to pump and transform the fuel-air mixture into driving force.

A. Before you move the spoilers, tell all persons to get off the wings.

B. Before telling all persons to get off the wings, you move the ailerons.

C. Before you move the ailerons, tell all persons to get off the wings.

A. Only the certified personnel can complete the modification or repair to the aircraft.

B. Pay attention that inspections or maintenance work ought to be carried out by mechanics.

C. Modifications or repairs to aircraft should be achieved by releasing staff.

A. Clean the surface to ensure there will be good adhesion.

B. Clean the surface to ensure firm adhesion.

C. Clean the surface to make sure that the bond is satisfactory.

A. 在设计示意图时,可能有必要在使示意图易于说明的细节与为易于阅读和理解所必需的简单性之间做出妥协折衷。

B. 在设计示意图时,可能有必要在使示意图易于说明的细节与为易于阅读和理解所必需的简单性之间做出选择。

C. 在设计示意图时,必须兼顾在使示意图易于说明的细节与为易于阅读和理解所必需的简单性。

A. The first step should always be Job Set-Up, and the last should be finish or Cleaning.

B. The first step is always Job prepare, and the last should be end or Clean-Up.

C. The first step should always be Job Set-Up, and the last should be Close-Up or Clean-Up.

A. 将O形环安装在锥形轴承的内部凹槽中

B. 将O形环安装在圆柱形轴承的内部凹槽中

C. 将O环安装在球形轴承的内部凹槽中

A. 备用交流汇流条从左转换汇流条获得电源,但当如下情况发生任一条件时,变换到静变流机:左转换汇流条没有电:电瓶电门接通;备用电源电门在自动位。

B. 备用交流汇流条从左转换汇流条获得电源,但当如下情况都发生时,变换到静变流机:左转换汇流条没有电:电瓶电门接通;应急电源电门在自动位。

C. 备用交流汇流条从左转换汇流条获得电源,但当如下情况都发生时,变换到静变流机:左转换汇流条没有电:电瓶电门接通;备用电源电门在自动位。

A. 拧紧松紧螺套,直到钢索达到所需的张力

B. 拉动导线,直到松紧螺套数值是理想的

C. 拧紧松紧螺套,直到钢索达到预设张力

A. 燃油在燃烧室内燃烧

B. 燃油通过喷嘴进入雾化器

C. 燃油通过雾化器进入燃烧