Bifacial leaf and mesophyll tissue contain crystals , phloem is rich in saliferous vacuoles , and the mechanical tissue is developed 异面叶，叶肉组织中含有晶体，韧皮部内富含含盐液泡泡，机械组织发达。
2.
Rely on goldmine , see all one can . for the high quality , goldmine traffic appliance industrial co , ltd , which manufactures professionally series of outer - and inner rearview mirrors of plane , spherical , bifacial , wide angle , curved surface , wide sight and prism and so on , which functions has kinds of manual , electromotive , automatic folding , defrosting and demisting styles to medium or top grade cars 瑞安市光得明交通电器有限公司以“依光得明尽览无余”的高品质特点而专业生产中高档商务车轿车手动电动自动折叠除霜除雾自动除霜除雾及各种平面镜球面镜双曲镜广角镜曲面镜博视镜棱镜等系列外内后视镜。
