These products have been steam distilled out.

Maintaining a healthy self-esteem is ( be ) a challenge that continues throughout life.

解析:一般现在时,动名词做主语,谓语动词用单数.

After supper, we often listen to the radio or watch TV.

晚饭后, 我们经常听广播或看电视.(连接两个谓语)

When I passed by his office , I found John reading something carefully.

分词作宾语补足语和主语补足语其实是同一成分用于两种不同的句式中.

Use is made of solar energy in heating houses.

双重定语引起的分隔.

The public buildings are equipped with air conditioning plants.

(动名词作定语)这些公共建筑物都设有空气调节装置.

Among all the metals iron is the most widely used engineering metal.

(定语)在所有金属中间,铁是最广泛使用的工程金属材料.

On heated, the two substances form a new compound.

(介词宾语)这两种物质一遇热就生成新的化合物.

My sister was heard singing that song in English outside.

(宾语补足语)我听到妹妹在外面用英文唱那首歌.

I know the young couple from whose house the music is coming.

但是当介词放在从句末尾时,作为介词宾语的关系代词可以用that并且可以省略.

Some verbs do not take an object and are a preposition.

有些动词后面不跟宾语,而是与介词搭配.

In the sentence " Frank kicked the ball " , the word " ball " is the object of the verb " kicked ".

在frankkickedthe ball 一句中, ball 是动词kicked的宾语.

Application Practice of High Penetration Emulsified Bitumen Tack Coat in Construction of High-grade Expressway

高渗透力乳化沥青透层在高等级公路中的应用

Study on Tack Coat Interface Layer Test for CRCP Slab and AC Surface

CRCP板与沥青混凝土面层间粘结层材料试验研究

Performance Evaluation of Tack Coat Oil Based on Drawing and Rutting Tests

基于拉拔和车辙试验的沥青面层间黏层油性能评价

Thirdly, based on the result of FEM mechanics analysis for the tack coat interface layer, a kind of tack coat material with the best performance and the construction technics were recommended after a series of indoor and field experiments.

第三，通过有限元力学分析和一系列室内外试验，选择了高性能的粘结层材料和合适的施工工艺，提出了一套完整的粘结层材料室内外试验评价方法。

On effect and construction technology points of the prime coat and tack coat in pavement project

谈路面工程透层和粘层的作用及施工技术要点

Several problems of asphalt pavement on design and construction in our province including the design, construction of tack coat and seal coat, gradation control, optimal bitumen ratio determination as well as the strength criteria of semi-rigid base course are discussed in this article.

结合我省高速公路沥青路面的设计与施工，对黏层、封层的设计与施工、施工生产级配控制、最佳油石比确定以及半刚性基层强度设计指标等问题进行了探讨。

Close curtains on the shady side of the house ( north side ).

关掉背阴面 ( 北面 ) 的窗帘.

He sure does keep some shady company.

他确实有一些隐蔽的朋友。

The DBH growth of the two forests was declined greatly after 13 years, but the decrement was obviously less in shady slope forest than in sunny slope forest.

两种林分的胸径生长量在13年生以后明显降低，但阴坡林分的降幅明显小于阳坡林分；