求翻译：整平：先使用推土机粗平，再用平地机精确平整，控制层面无显著的局部凸出。每层路基表面做成2～4%的横向排水坡。为有效控制每层虚铺厚度，初平时用测钎控制每层的虚铺厚度。是什么意思？

Leveling: first coarse level using bulldozers, graders and then precision flat and level, no significant control of the local bulge. Subgrade surface made of each 2 to 4% of the horizontal drainage slope. To effectively control each virtual height, usually beginning with a test control each drill's

Use the Ping: first-come-first-served basis, and then use bulldozers plains rough Ping machine precision formation, there is no significant level of control over local abdomen. Each floor surface roadbed 2 ~ 4 % of horizontal drainage slope. In order to effectively control each layer thickness, virt

Leveling: Uses the bulldozer first thickly even, then uses the road roller precisely smooth, the control stratification plane not remarkable part protrudes.Each roadbed surface makes 2~4% crosswise weathering.For the active control each empty shop thickness, initially usually uses to measure the roc

Leveling: crude flat using a bulldozer, and grader accurate flat, no significant local control protruded. Each floor horizontal drainage slope of subgrade surface made of 2~4%. Virtual shop for effective control of each layer thickness, usually in the early virtual shop chain pin control each layer

Leveling: first coarse level using bulldozers, graders and then precision flat and level, no significant control of the local bulge. Subgrade surface made of each 2 to 4% of the horizontal drainage slope. To effectively control each virtual height, usually beginning with a test control each drill's